跳到主要內容

臺灣博碩士論文加值系統

(3.235.120.150) 您好!臺灣時間:2021/07/31 13:42
字體大小: 字級放大   字級縮小   預設字形  
回查詢結果 :::

詳目顯示

我願授權國圖
: 
twitterline
研究生:張仲良
研究生(外文):Chung-Liang Chang
論文名稱:適應性訊號處理技術於全球衛星導航接收機之應用
論文名稱(外文):Application of Adaptive Signal Processing Techniques in GPS Receivers
指導教授:莊智清莊智清引用關係
指導教授(外文):Jyh-Ching Juang
學位類別:博士
校院名稱:國立成功大學
系所名稱:電機工程學系碩博士班
學門:工程學門
學類:電資工程學類
論文種類:學術論文
畢業學年度:96
語文別:英文
論文頁數:106
中文關鍵詞:全球衛星導航系統多路徑效應虛擬衛星陣列天線
外文關鍵詞:signal blankingpseudoliteantenna arraymultipathGPS
相關次數:
  • 被引用被引用:0
  • 點閱點閱:149
  • 評分評分:
  • 下載下載:0
  • 收藏至我的研究室書目清單書目收藏:0
隨著衛星導航系統的應用層面越趨廣泛,如何提升接收機的性能已是現今許多專家學者所思考的問題。本論文應用適應性訊號處理技術來減低因衛星訊號中斷、多路徑效應以及干擾產生時其對接收機接收定位所造成的影響。在訊號中斷處理方面,架設於飛行載具上的接收機天線會因飛行載具在旋轉時,天線指向方位也隨著改變,而導致其接收到的訊號不完整(長時間或短時間訊號中斷)進而造成接收機無法定位的現象,在本文中,首先假設在雜訊分布已知的條件下,利用傳統訊號偵測機制並搭配多組天線的組合方式進行訊號偵測,其方法能夠有效解決訊號中斷的問題,之後利用多重適應性訊號偵測機制來抑制同通道干擾的影響,模擬結果顯示本文所提出的方法與傳統訊號偵測方式可以有效改善輸出訊號雜訊比約5dB左右。
在干擾抑制處理方面,除了利用前述的方法外,本文另外使用陣列天線並搭配適應性空時訊號處理技術來抑制窄頻及寬頻干擾,並且分析與比較不同的陣列排列方式(均勻圓形排列、均勻方形排列、均勻直線排列)對干擾抑制的影響,從數學分析結果顯示空時相關函數影響著干擾抑制訊號處理的性能,且該函數與陣列排列的方式有關,在模擬結果中顯示出均勻方形分布有不錯的干擾抑制性能表現。最後,本文利用一簡單的2x2的陣列實驗架構來驗證干擾抑制的效果,其結果顯示在5個時間延遲條件下可以抑制干擾達30dB。另外,論文中也說明使用連續干擾消除法以及頻域濾波器來解決近場域虛擬衛星干擾問題並減低連續弦波干擾的影響,實驗結果驗證此方法可提升輸出訊號雜訊比。
在多路徑效應研究方面,我們提出改良後的適應性濾波器來減低多路徑效應,此方法使用改良後的適應性延遲元件網路來估測直射與延遲訊號參數並加以重建延遲訊號相關函數,之後再與相關器輸出相減後所得到的參數值送入追蹤迴路進行訊號同步,經由模擬比較顯示,此方法應用在短路徑延遲環境下相較於其他方法有不錯的多路徑抑制性能表現以及低的硬體實現複雜度。
With the growing demand for positioning in many military and civilian applications, there is an increasing requirement to enhance the performance of Global Positioning Systems (GPS) receivers. Adaptive signal processing is an enabling technology that is capable of addressing problems related to signal blanking, detection, multipath and interference mitigation. In this dissertation, an adaptive signal processing technique is utilized to account for the effect due to satellite signal discontinuity, multipath and interference.
In air navigation, the rotation of aircraft results in discontinuous tracking of GPS signal. As the platform rotates, the GPS signals are subject to blanking effects. To solve this problem, a ring-type antenna array is used to prevent signal discontinuity and a hypothesis-test based detection scheme is developed so that the correct antenna combination can be formed to provide uninterrupted reception of GPS signals in the presence of blanking, noise, and interferences. A fixed threshold detection scheme is first developed by assuming that the statistics of the noise are known. It is shown that the scheme is capable of separating signal from noise at each antenna element. To account for the interference effect, a multiple hypothesis test scheme, together with an adaptive selection rule, is further developed. The simulation result shows that the application of proposed scheme into multi-antennas under the condition of multiple interferences can increase the output value to 5dB and efficiently remove interference as well as noise in comparison with traditional multi-antennas signal detection methods. The dissertation also analyzes the spatial-temporal adaptive processing (STAP) performance of various type antenna array configurations in interference environment. The mathematical analysis results illustrate that the array configuration has a considerable effect on the spatial-temporal correlation function. Simulation results show that the uniform rectangular array (URA) configuration has advantages over others (ULA, and UCA). A URA array is henceforth implemented and tested against wideband (pseudolite-type) and narrowband interference. The interference mitigation performance is experimentally verified. With respect to narrowband and wideband interference, the 2x2 array is capable of withstanding up to 30 dB interference-to-noise ratio. Besides, successive interference cancellation and frequency excision method are employed and combined to remove narrowband and pseudolite-type interferences. Experiments show that with the removal of interferences, the post-correlation SNR for all satellites can be enhanced. At last, a modified adaptive filter is utilized as solution for multipath mitigation. The filter employs a tap-delay line with an Adaline network to estimate the direction and delayed signal parameters. Then, the multipath effect is mitigated by subtracting the estimated multipath effects from the processed correlation function. Simulation results show that the proposed method using test data has a significant reduction in multipath error especially in short delay multipath scenarios.
中文摘要 i
Abstract iii
Acknowledgments v
Table of Contents vi
List of Tables viii
List of Figures ix


CHAPTER 1 Introduction 1

1.1 Research Motivations 2
1.2 Contributions of Dissertation 4
1.3 Organization of Dissertation 5

CHAPTER 2 Adaptive Array Signal Detection Scheme in the Presence of Blanking 7

2.1 Preliminary 7
2.2 Signal Model 9
2.3 Methodology 12
2.3.1 Signal Detection 12
2.3.2 Multiple Hypothesis Test Scheme 15
2.4 Numerical Simulation 22
2.5 Summary 31

CHAPTER 3 GPS Interference Mitigation via STAP
and SIC 32

3.1 Antenna Array Processing 32
3.1.1 Preliminary 32
3.1.2 Spatial-Temporal Adaptive Processing Model 34
3.1.3 STAP Algorithm 36
3.1.4 Influence of Array Configuration on STAP Performance 39
3.1.5 Illustrative Example 44
3.1.6 Experiment Results 55
3.2 Spectral Filtering and Successive Interference Cancellation 59
3.2.1 Preliminary 59
3.2.2 Interference Suppression Scheme 61
3.2.3 Simulation and Experiment Results 65
3.3 Summary 71

CHAPTER 4 Adaptive Filtering for GPS Multipath Mitigation 72

4.1 Preliminary 72
4.2 Multipath Overview 76
4.3 Multipath Mitigation Methodology 78
4.3.1 System Description 78
4.3.2 Multipath Model and Modified Adaptive Filter 79
4.3.3 Correlation Value Decomposer 83
4.3.4 Multipath Removal 84
4.4 Performance Analysis and Simulation Results 85
4.4.1 Simulation Parameter 86
4.4.2 Performance Comparison 86
4.5 Summary 92

CHAPTER 5 Conclusions 94
5.1 Future Research 96

References 97
Publication List 104
Vita 106
[1]M. Barket, Signal Detection and Estimation. 2nd ed., Artech House, Massachusetts, 2005.
[2]J. Barnes, C. Rizos, J. Wang, D. Small, G. Voigt, and N. Gambale, “High precision indoor and outdoor positioning using LocataNet,” Journal of Global Positioning Systems, vol. 2, no. 2, pp. 73–82, 2004.
[3]F. Bastide, O. Julien, C. Macabiau, and B. Roturier, “Analysis of L5/E5 acquisition, tracking and data demodulation thresholds,” in Proceedings of the International Technical Meeting of the Institute of Navigation (ION-GPS ’02), Oregon, pp. 2196–2207, September 2002.
[4]M. S. Braasch, “Isolation of GPS multipath and receiver tracking errors,” Navigation: Journal of the Institute of Navigation, vol. 41, no. 4, pp. 415–434, Winter 1994–1995.
[5]M. S. Braasch, “Performance comparison of multipath mitigating receiver architectures,” in Proceedings of IEEE Aerospace Conference, vol. 3, pp. 1309–1315, Big Sky, March 2001.
[6]M. S. Braasch and F. Van Graas, “Guidance accuracy considerations for real time GPS interferometry,” in Proceedings of the International Technical Meeting of the Institute of Navigation (ION-GPS ’91), pp. 373–386, Albuquerque, September 1991.
[7]P. T. Capozza, B. J. Holland, and T. M. Hopkinson, “A single-chip narrow-band frequency-domain excision for a Global Positioning System (GPS),” IEEE Journal of Solid-State Circuits, vol. 35, no. 3, pp. 401–410, March 2000.
[8]R. Chaggara, C. Macabiau, and E. Chatre, “Using GPS multicorrelator receivers for multipath parameters estimation,” in Proceedings of the International Technical Meeting of the Institute of Navigation (ION-GPS ’02), pp. 477–486, Portland, September 2002.
[9]C. L. Chang and J. C. Juang, “An adaptive multipath mitigation filter for GNSS application,” in Proceedings of the 2005 Automatic Control Conference, pp. d-two-79�{�����z�nTaiwan, November 2005.
[10]C. L. Chang and J. C. Juang, “The effect of masked signal on the performance of GNSS code tracking system,” in Proceedings International Symposium on IAIN/GNSS, pp. 223�{�������z�nJeju, Korea, October 2006.
[11]C. L. Chang and J. C. Juang, “Analysis of spatial and temporal adaptive processing for GNSS interference mitigation,” in Proceedings of International Symposium on IAIN/GNSS, pp. 143�{�������z�nJeju, Korea, October 2006.
[12]C. L. Chang and J. C. Juang, “Development of adaptive multi-function signal detection techniques in processing GNSS signals under blanking,” in Proceedings of the International Symposium on ISG & GPS/GNSS, Persada Johor, Malaysia, November 2007.
[13]C. L. Chang, J. C. Juang, and Y. L. Tsai, “Development of neural network-based GPS anti-jam techniques,” in Proceedings of CACS Automatic Control Conference, pp.1076–1081, Changhua, Taiwan, March 2004.
[14]G. M. Dillard, “Mean-level detection of nonfluctuating signals,” IEEE Transactions on Aerospace Electronic System, vol. AES-10, no. 6, pp. 795–799, November 1974.
[15]B. D. Elrod and A. J. van Dierendonck, Pseudolites, in B. W. Parkinson et al. (eds.) Global Positioning System: Theory and Applications. American Institute of Aeronautics and Astronautics, Washington D.C., 1996, pp. 51–79.
[16]R. L. Fante and J. J. Vaccaro, “Wideband cancellation of interference in a GPS receive array,” IEEE Transactions Aerospace and Electronic Systems, vol. 36, no. 2, pp. 549–564, April 2000.
[17]L. Garin, F. Van Diggelen, and J. Rousseau, “Strobe and edge correlator multipath rejection for code,” in Proceedings of the International Technical Meeting of the Institute of Navigation (ION-GPS ’96), pp. 657–664, Kansas City, September 1996.
[18]L. Garin and J. Rousseau, “Enhanced strobe correlator multipath rejection for code and carrier,” in Proceedings of the International Technical Meeting of the Institute of Navigation (ION-GPS ’97), pp. 559–568, Kansas City, September 1997.
[19]S. G. Glisic, “Automatic decision threshold level control in direct sequence spread spectrum systems based on matched filtering,” IEEE Transactions on Communications, vol. 36, no. 2, pp. 519–527, April 1988.
[20]K. Gold, R. Silva, R. Worrell, and A. Brown, “Space navigation with digital beam steering GPS receiver technology,” in Proceedings of the International Technical Meeting of the Institute of Navigation (ION-AM ’03), pp. 420–426, Albuquerque, June 2003.
[21]G. H. Golub and C. F. Van Loan, Matrix Computations. 2nd ed., Johns Hopkins University Press, Baltimore, USA, 1989.
[22]L. L. Hagerman, “Effects of multipath on coherent and non-coherent PRN ranging receiver,” Aerospace Report No. TOR-0073 (3020–03)–3, The Aerospace Corporation, pp. 39, May 1973.
[23]S. Haykin, Array Signal Processing. Prentice Hall, Englewood Cliffs, USA, 1985.
[24]S. Haykin, Adaptive Filter Theory. 3rd ed., Prentice Hall, Englewood Cliffs, USA, 1996.
[25]S. Haykin, Neural Networks: A Comprehensive Foundation. Prentice Hall, Englewood Cliffs, New Jersey, USA, 1999.
[26]J. K. Holmes, Coherent Spread Spectrum System, Wiley, New York, 1982.
[27]E. L. Houghton and P. W. Carpenter, Aerodynamics for Engineering Students, Edward Arnold; 4th edition, 1993.
[28]J. H. J. Iinatti, “On the threshold setting principles in code acquisition of DS-SS signals, ” IEEE Journal on Selected Areas in Communications, vol. 18, no. 1, pp. 62–72, January 2000.
[29]M. Irsigler and B. Eissfeller, “Comparison of multipath mitigation techniques with consideration of future signal structures,” in Proceedings of the International Technical Meeting of the Institute of Navigation (ION-GPS/GNSS ’03), pp. 2584–2592, Portland, September 2003.
[30]R. A. Jacobs, “Increased rates of convergence through learning rate adaptation,” Neural Networks, vol. 1, no. 4, pp. 295–307, January 1988.
[31]K. D. Johnston, “A comparison of CW and swept CW effects on a C/A code GPS receiver,” in Proceedings of the International Technical Meeting of the Institute of Navigation (ION-GPS ’99), pp. 149–158, Kansas City, September 1999.
[32]J. C. Juang, “Seamless handover of combined GPS/pseudolite navigation,” in Proceedings of the International Technical Meeting of the Institute of Navigation (ION-GNSS ’04), pp. 2059–2065, Long Beach, September 2004.
[33]J. C. Juang, C. L. Chang, and Y. L. Tsai, “An interference mitigation approach against pseudolite,” in Proceedings of the International Symposium on GNSS/GPS, pp. 144–156, Sydney, December 2004.
[34]J. C. Juang and C. L. Chang, “Performance analysis of GPS pseudolite interference mitigation using adaptive spatial beamforming,” in Proceedings of the International Technical Meeting of the Institute of Navigation (ION-AM ’05), pp. 1179–1187, Boston, June 2005.
[35]J. C. Juang, K. Y. Cheng, C. L. Tseng, and C. F. Lo, “The design and test of a dual-frequency GPS pseudo-satellite augmentation system,” in Proceedings of the International Conference on Integrated Navigation Systems, Saint Petersburg, May 2004.
[36]J. C. Juang, W. L. Kuo, and W. J. Lai, “Design of a dual frequency pseudolite transmitter,” in Proceedings of the 5th Symposium on GPS Technology, Tainan, Taiwan, December 2002.
[37]S. K. Kalyanaraman, M. S. Braasch, and J. M. Kelly, “Code tracking architecture influence on GPS carrier multipath,” IEEE Transactions on Aerospace and Electronic Systems, vol. 42, no. 2, pp. 548–561, April 2006.
[38]E. D. Kaplan and C. J. Hegarty, Understanding GPS: Principles and Applications. Artech House, Boston, 2006.
[39]C. Kee, H. Jun, D. Yun, B. Kim, Y. Kim, B. W. Parkinson, T. Langenstein, S. Pullen, and J. Lee, “Development of indoor navigation system using asynchronous pseudolites,” in Proceedings of the International Technical Meeting of the Institute of Navigation (ION-GPS 2000), pp. 1038–1045, Salt Lake City, September 2000.
[40]J. M. Kelly, M. S. Braasch, and M. F. DiBenedetto, “Characterization of the effects of high multipath phase rates in GPS,” GPS Solutions, vol. 7, no. 1, pp. 5–15, July 2003.
[41]J. W. Ketchum and J. G. Proakis, “Adaptive algorithm for estimating and suppressing narrow-band interference in PN spread-spectrum systems,” IEEE Transactions on Communications, vol. 30, no. 5, pp. 913–924, April 1982.
[42]D. Klein and B. W. Parkinson, “The use of pseudo-satellite for improving GPS performance,” Global Positioning System Vol. III, Institute of Navigation, 1984, pp. 135–146.
[43]W. Kunysz, “Advanced pinwheel compact controlled reception pattern antenna designed for interference and multipath mitigation,” in Proceedings of the International Technical Meeting of the Institute of Navigation (ION-GPS ’01), pp. 2030–2036, Salt Lake City, September 2001.
[44]M. C. Laxton and S. L. DeVilbiss, “GPS multipath mitigation during code tracking,” in Proceedings of the American Control Conference, vol. 3, no. 5, pp. 1429–1433, Albuquerque, June 1997.
[45]L. M. Li and L. B. Milstein, “Rejection of pulsed CW interference in PN spread spectrum system using complex adaptive filter, IEEE Transactions on Communications, vol. 31, no. 1, pp. 11–20, January 1983.
[46]H. C. Lin, “Spatial correlation in adaptive arrays,” IEEE Transactions Antennas Propagation, vol. 30, no. 2, pp. 212–223, March 1982.
[47]P. H. Madhani, P. Axelrad, K. Krumvieda, and J. Thomas, “Application of successive interference cancellation to the GPS pseudolite near-far problem,” IEEE Transactions on Aerospace and Electronic Systems, vol. 39, no. 2, pp. 481–488, April 2003.
[48]R. J. Mailloux, Phased Array Antenna Handbook, Massachusetts: Artech House, Norwood, USA, 1994.
[49]D. P. Mandic and J. A. Chambers, “Towards the optimal learning rate for backpropagation,” Neural Processing Letters, vol. 11, no. 1, pp. 1–5, February 2000.
[50]D. J. Moelker, E. van der Pol, and Y. Bar-Ness, “Adaptive antenna arrays for interference cancellation in GPS and GLONASS receivers,” in Proceedings of the IEEE Position, Location and Navigation Symposium, pp. 191–198, April 1996.
[51]Y. T. J. Morton, L. L. Liou, D. M. Lin, J. B. Y. Tsui, and Q. Zhou, “Interference cancellation using power minimization and self-coherence properties of GPS signals,” in Proceedings of the International Technical Meeting of the Institute of Navigation (ION-GPS/GNSS ’04), pp. 132–143, Long Beach, September 2004.
[52]Y. T. J. Morton, J. B. Y. Tsui, D. M. Lin, L. L. Liou, and M. M. Miller, “Assessment and handling of CA code self-interference during weak GPS signal acquisition,” in Proceedings of the International Technical Meeting of the Institute of Navigation (ION-GPS/GNSS ’03), pp. 646–653, Portland, September 2003.
[53]S. Moshavi, “Multi-user detection for DS-CDMA communications,” IEEE Communications Magazine, vol. 34, no. 10, pp. 124–136, October 1996.
[54]W. L. Myrick, J. S. Goldstein, and M. D. Zoltowski, “Low complexity anti-jam space-time processing for GPS,” in Proceedings of the 2001 IEEE International Conference on Acoustics, Speech, and Signal Processing, pp. 2233–2236, Salt Lake City, May 2001.
[55]National Instruments, PXI-5660 RF Signal Analyzer User Manual, Part Number 323222C-01, 2002.
[56]C. P. Norman and C. R. Cahn, “Strong signal cancellation to enhance processing of weak spread spectrum signal,” United States Patent Application Publication, February 2005.
[57]T. Pany, M. Irsigler, and B. Eissfeller, “S-Curve shaping: A new method for optimum discriminator based code multipath mitigation,” in Proceedings of the International Technical Meeting of the Institute of Navigation (ION-GPS/GNSS ’05), pp. 2139–2154, Long Beach, September 2005.
[58]B. W. Parkinson and J. J. Jr. Spilker, ed., Global Positioning System: Theory and Applications, American Institute of Aeronautics and Astronautics, Washington, 1996.
[59]P. Patel and J. Holtzman, “Analysis of a simple successive interference cancellation scheme in DS/CDMA system,” IEEE JSAC-Special Issue on CDMA, vol. 12, no. 5, pp. 796–807, June 1994.
[60]J. M. Przyjemski and J. B. Lozow, Antijam null steering conformal cylindrical antenna system,” United States Patent Application Publication, May 2002.
[61]M. L. Psiaki, “Block acquisition of weak GPS signals in a software receiver,” in Proceedings of the International Technical Meeting of the Institute of Navigation (ION-GPS ’01), Salt Lake City, pp. 2838–2850, September 2001.
[62]S. H. Raghavan and J. K. Holmes, “Performance of Costas and phase locked loops with signal blanking,” in Proceedings of the IEEE International Conference on Aerospace and Electronic System, pp. 1524–1531, March 2005.
[63]D. E. Rumelhart, G. E. Hinton, and R. J. Williams, “Learning internal representations by error propagation,” Parallel Distributed Processing, Cambridge, Massachusetts Institute of Technology press, vol. 1, pp. 318–362, July 1986.
[64]L. A. Rusch and H. V. Poor, “Narrowband interference suppression in CDMA spread spectrum communications,” IEEE Transactions on Communications, vol. 42, no. 2, pp. 1969–1979, August 1994.
[65]T. K. Sarkar and R. Adve, “Space-time adaptive processing using circular arrays,” IEEE Antennas and Propagation Magazine, vol. 43, no. 1, pp. 138–143, February 2001.
[66]R. J. Schalkoff, Artificial Neural Networks. McGraw–Hill, New York, USA, 1997.
[67]Z. L. Shi and P. F. Driessen, “Automatic threshold control for acquisition in spread spectrum packet radio communication,” in Proceedings of the IEEE International Conference on Communications, vol. 1, pp. 478–482., Geneva, May 1993.
[68]K. A. Shridhara, “Jamming detection and blanking for GPS receivers,” United States Patent Application Publication, September 2002.
[69]J. J. Jr. Spilker, “GPS signal structure and performance characteristics,” Navigation: Journal of the Institute of Navigation, vol. 25, no. 2, pp. 121–146, Summer 1978.
[70]J. J. Jr. Spilker and F. D. Natali, “Interference effects and mitigation techniques,” in B. W. Parkinson et al (eds.) Global Positioning System: Theory and Applications, American Institute of Aeronautics and Astronautics, Washington, USA, 1996, pp. 717–772.
[71]B. R. Townsend and P. C. Fenton, “A practical approach to the reduction of pseudorange multipath errors in all GPS receiver,” in Proceedings of the International Technical Meeting of the Institute of Navigation (ION-GPS ’94), pp. 143–148, Salt Lake City, September 1994.
[72]B. R. Townsend, R. D. J. Van Nee, P. C. Fenton, and K. J. V. Dierendonck, “Performance evaluation of the multipath estimating delay lock loop,” in Proceedings of the National Technical Meeting of the Institute of Navigation (ION-NTM ’95), pp. 227–283, Anaheim, January 1995.
[73]J. B. Y. Tsui, Fundamentals of Global Positioning System Receivers: A Software Approach. Wiley, New York, USA, 2000.
[74]T. Upadhyay, G. Dimos, and W. Ferzali, “Test results on mitigation of SATCOM-Induced interference to GPS operation,” in Proceedings of the International Technical Meeting of the Institute of Navigation (ION-GPS ’95), pp. 1545–1552, September 1995.
[75]J. Vaccaro and R. Fante, “Ensuring GPS availability in an interference environment,” in Proceedings of the International Technical Meeting of the Institute of Navigation (ION-GPS 2000), pp. 458–461, Salt Lake City, September 2000.
[76]A. J. Van Dierendonck and M. S. Braasch, “Evaluation of GNSS receiver correlation processing techniques for multipath and noise mitigation,” in Proceedings of the National Technical Meeting of the Institute of Navigation (ION-NTM ’99), pp. 207–215, Santa Monica, January 1997.
[77]A. J. Van Dierendonck, P. Fenton, and T. Ford, “Theory and performance of narrow correlator spacing in GPS receiver,” Navigation: Journal of the Institute of Navigation, vol. 39, no. 3, pp.265–283, Fall 1992.
[78]R. D. J. van Nee, “Reducing multipath tracking errors in spread-spectrum ranging systems,” Electronics Letters, vol. 28, no. 8, pp. 729–731, April 1992.
[79]R. D. J. van Nee, “Spread-spectrum code and carrier synchronization errors caused by multipath and interference,” IEEE Transactions on Aerospace and Electronic Systems, vol. 29, no. 4, pp. 1359–1365, October 1993.
[80]R. D. J. van Nee, J. Siereveld, P. C. Fenton, and B. R. Townsend, “The multipath estimating delay lock loop: Approaching theoretical accuracy limits,” in Proceedings of the IEEE Position Location and Navigation Symposium, vol. 1, pp. 246–251, Las Vegas, April 1994.
[81]H. L. Van Trees, Optimum Array Processing. Wiley, New York, USA, 2002.
[82]Volpe National Transportation Systems Center, “Vulnerability assessment of the transportation infrastructure relying on the Global Positioning System,” U. S. Department of Transportation, August 2001.
[83]J. Wang, T. Tsujii, C. Rizos, L. Dai, and M. Moore, “GPS and pseudo-satellites integration for precise positioning, Geomatics Research Australasia, no. 74, pp. 103–117, June 2001.
[84]P. Ward, “Effects of RF interference on GPS satellite signal receiver tracking,” in E. D. Kaplan (ed.) Understanding GPS: Principles and Applications, Artech House, Norwood, USA, 1996, pp. 209–236.
[85]B. Widrow and M. A. Lehr, “30 years of adaptive neural networks: Perceptron, madaline, and back propagation,” Proceedings of IEEE, vol. 78, no. 9, pp. 1415–1442, September 1990.
[86]B. Widrow and M. E. Hoff, “Adaptive switch circuits,” IRE WESCON. Convention Record–Part 4, vol. 55, pp. 96–104, New York, December 1960.
[87]P. Xiong, J. M. Michael, and N. B. Stella, “Spatial and temporal processing for global navigation satellite system: The GPS receiver paradigm,” IEEE Transactions on Aerospace and Electronic Systems, vol. 39, no. 4, pp. 1471–1484, September 2003.
[88]K. Yang, Y. Zhang, and Y. Mizuguchi, “Space-time adaptive processing based on unequally spaced antenna arrays,” in Proceedings of the IEEE 51st Vehicular Technology Conf., vol. 2, pp. 1220–1224, Tokyo, May 2000.
[89]Y. Zhang, K. Hirasawa, and K. Fujimoto, “A design method of linear adaptive arrays,” in Proceedings of the International Symposium on Antennas and Propagation, Tokyo, pp. 333–336, August 1989.
[90]M. D. Zoltowski and A. S. Aecan, “Advanced adaptive null steering concepts for GPS,” in Proceedings of the IEEE Military Communication Conference, vol. 3, pp. 1214–1218, November 1995.
連結至畢業學校之論文網頁點我開啟連結
註: 此連結為研究生畢業學校所提供,不一定有電子全文可供下載,若連結有誤,請點選上方之〝勘誤回報〞功能,我們會盡快修正,謝謝!
QRCODE
 
 
 
 
 
                                                                                                                                                                                                                                                                                                                                                                                                               
第一頁 上一頁 下一頁 最後一頁 top
無相關期刊