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在低信噪比条件下,基于时延和多普勒频移的直接定位算法在解决宽带信号源定位时精度较差.针对此问题,提出了一种基于分段信号相关累加的变速度多站联合直接定位算法,并给出了其克拉美罗下界.该算法利用多个变速度的观测站对信号进行接收,然后将同一观测站接收的目标信号分割成多段不重叠的短时信号,采用最大似然估计器,联合各段信号的时延、多普勒频移信息对目标进行直接定位.算法充分利用了观测信号包含的定位信息,并利用观测站速度的变化增加了目标位置信息,解决了分段信号联合估计带来的定位模糊问题,使定位精度进一步提高,增加了算法的实用性.仿真实验表明,较之传统直接定位算法,本文算法定位精度更高,尤其在低信噪比条件下更能逼近克拉美罗界.
[1] Oh D, Kim S, Yoon S H 2013 IEEE Trans. Wireless Commun. 12 3130
[2] Lei H, So H C 2013 IEEE Trans. Signal Process. 61 4860
[3] Ba B, Liu G C, Li T, Lin Y C, Wang Y 2015 Acta Phys. Sin. 64 078403 (in Chinese)[巴斌, 刘国春, 李韬, 林禹丞, 王瑜2015物理学报64 078403]
[4] Lu Z Y, Wang D M, Wang J H, Wang Y 2015 Acta Phys. Sin. 64 150502 (in Chinese)[逯志宇, 王大鸣, 王建辉, 王跃2015物理学报64 150502]
[5] Wang G, Li Y M, Nirwan A 2013 IEEE Trans. Veh. Technol. 62 853
[6] Ho K C, Chan Y T 1997 IEEE Trans. Aerosp. Electron. Syst. 33 770
[7] Chan Y T, Ho K C 2005 IEEE Trans. Signal Process. 53 2625
[8] Bosse J, Ferréol A, Larzabal P 2011 IEEE Statistical Signal Processing Workshop Nice, France, June 2-6, 2011 p701
[9] Weiss A J 2004 IEEE Signal Process Lett. 11 513
[10] Weiss A J, Amar A 2005 EURASIP J. Adv. Signal Process. 1 37
[11] Amar A, Weiss A J 2006 Digital Signal Process. 16 52
[12] Bar-Shalom O, Weiss A J 2011 Signal Process. 91 2345
[13] Pourhomayoun M, Fowler M L 2014 IEEE Trans. Aerosp. Electron. Syst. 50 2878
[14] Vankayalapati N, Kay S, Ding Q 2014 IEEE Trans. Aerosp. Electron. Syst. 50 1616
[15] Tirer T, Weiss A J 2016 IEEE Signal Process Lett. 23 192
[16] Fu Z J, Sun X M, Liu Q, Zhou L, Shu J G 2015 IEICE Trans. Commun. 98 190
[17] Ren Y J, Shen J, Wang J, Han J, Lee S Y 2015 J. Internet Technol. 16 317
[18] Gu B, Sheng V S, Wang Z J, Ho D, Osman S, Li S 2015 Neural Networks 67 140
[19] Wen X Z, Shao L, Xue Y, Fang W 2015 Inform. Sci. 295 395
[20] Xie S D, Wang Y X 2014 Wireless Pers. Commun. 78 231
[21] Amar A, Weiss A J 2008 IEEE Trans. Signal Process. 56 5500
[22] Weiss A J 2011 IEEE Trans. Signal Process. 59 2513
[23] Oispuu M, Nickel U 2010 International Itg Workshop on Smart Antennas IEEE 1 300
[24] Bosse J, Ferreol A, Larzabal P 2013 IEEE Trans. Signal Process. 61 5485
[25] Godrich H, Haimovich A M, Blum R S 2010 Information Theory IEEE Transactions on 56 2783
[26] Li J Z, Yang L, Guo F C, Jiang W L 2015 Digital Signal Process. 48 58
[27] Yeredor A, Angel E 2011 IEEE Trans. Signal Process. 59 1612
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[1] Oh D, Kim S, Yoon S H 2013 IEEE Trans. Wireless Commun. 12 3130
[2] Lei H, So H C 2013 IEEE Trans. Signal Process. 61 4860
[3] Ba B, Liu G C, Li T, Lin Y C, Wang Y 2015 Acta Phys. Sin. 64 078403 (in Chinese)[巴斌, 刘国春, 李韬, 林禹丞, 王瑜2015物理学报64 078403]
[4] Lu Z Y, Wang D M, Wang J H, Wang Y 2015 Acta Phys. Sin. 64 150502 (in Chinese)[逯志宇, 王大鸣, 王建辉, 王跃2015物理学报64 150502]
[5] Wang G, Li Y M, Nirwan A 2013 IEEE Trans. Veh. Technol. 62 853
[6] Ho K C, Chan Y T 1997 IEEE Trans. Aerosp. Electron. Syst. 33 770
[7] Chan Y T, Ho K C 2005 IEEE Trans. Signal Process. 53 2625
[8] Bosse J, Ferréol A, Larzabal P 2011 IEEE Statistical Signal Processing Workshop Nice, France, June 2-6, 2011 p701
[9] Weiss A J 2004 IEEE Signal Process Lett. 11 513
[10] Weiss A J, Amar A 2005 EURASIP J. Adv. Signal Process. 1 37
[11] Amar A, Weiss A J 2006 Digital Signal Process. 16 52
[12] Bar-Shalom O, Weiss A J 2011 Signal Process. 91 2345
[13] Pourhomayoun M, Fowler M L 2014 IEEE Trans. Aerosp. Electron. Syst. 50 2878
[14] Vankayalapati N, Kay S, Ding Q 2014 IEEE Trans. Aerosp. Electron. Syst. 50 1616
[15] Tirer T, Weiss A J 2016 IEEE Signal Process Lett. 23 192
[16] Fu Z J, Sun X M, Liu Q, Zhou L, Shu J G 2015 IEICE Trans. Commun. 98 190
[17] Ren Y J, Shen J, Wang J, Han J, Lee S Y 2015 J. Internet Technol. 16 317
[18] Gu B, Sheng V S, Wang Z J, Ho D, Osman S, Li S 2015 Neural Networks 67 140
[19] Wen X Z, Shao L, Xue Y, Fang W 2015 Inform. Sci. 295 395
[20] Xie S D, Wang Y X 2014 Wireless Pers. Commun. 78 231
[21] Amar A, Weiss A J 2008 IEEE Trans. Signal Process. 56 5500
[22] Weiss A J 2011 IEEE Trans. Signal Process. 59 2513
[23] Oispuu M, Nickel U 2010 International Itg Workshop on Smart Antennas IEEE 1 300
[24] Bosse J, Ferreol A, Larzabal P 2013 IEEE Trans. Signal Process. 61 5485
[25] Godrich H, Haimovich A M, Blum R S 2010 Information Theory IEEE Transactions on 56 2783
[26] Li J Z, Yang L, Guo F C, Jiang W L 2015 Digital Signal Process. 48 58
[27] Yeredor A, Angel E 2011 IEEE Trans. Signal Process. 59 1612
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