DTMB外輻射源雷達(dá)參考信號(hào)重構(gòu)信道估計(jì)新方法

萬顯榮; 程熠瑤; 易建新; 張勛

doi:10.11999/JEIT160796

DTMB外輻射源雷達(dá)參考信號(hào)重構(gòu)信道估計(jì)新方法

doi: 10.11999/JEIT160796 cstr: 32379.14.JEIT160796

基金項(xiàng)目:

國(guó)家重點(diǎn)研發(fā)計(jì)劃(2016YFB0502403)，國(guó)家自然科學(xué)基金(61331012, 61371197, U1333106, 61271400)，湖北省支撐項(xiàng)目(2015BCE075)，博士后創(chuàng)新人才支持計(jì)劃(BX201600117)，湖北省自然科學(xué)基金(2016CFA061)

計(jì)量
- 文章訪問數(shù): 1601
- HTML全文瀏覽量: 208
- PDF下載量: 415
- 被引次數(shù): 0
出版歷程
- 收稿日期: 2016-07-26
- 修回日期: 2016-11-07
- 刊出日期: 2017-05-19

Novel Channel Estimation of Reference Signal Reconstruction for DTMB-based Passive Radar

Funds:

The National Key Research and Development Program (2016YFB0502403), The National Natural Science Foundation of China (61336102, 61371197, 61271400), The Support Program of Hubei Province (2015BCE075), The Postdoctoral Innovation Talent Support Program (BX201600117), The Natural Science Foundation of Hubei Province (2016CFA061)

摘要

摘要: 參考信號(hào)的穩(wěn)健重構(gòu)是數(shù)字波形外輻射源雷達(dá)的關(guān)鍵技術(shù)之一，其中信道估計(jì)的精度直接關(guān)系到重構(gòu)參考信號(hào)的純度。針對(duì)數(shù)字地面多媒體廣播(DTMB)外輻射源雷達(dá)在接收系統(tǒng)基帶采樣率是信號(hào)符號(hào)速率非整數(shù)倍時(shí)所面臨的參考信號(hào)重構(gòu)質(zhì)量問題，該文在壓縮感知的匹配追蹤算法基礎(chǔ)上，提出一種改進(jìn)的信道估計(jì)新算法。仿真分析表明，相比于廣泛采用的時(shí)域相關(guān)法和最小二乘(LS)算法，改進(jìn)后的算法有更好的頻率適應(yīng)性，魯棒性高，在多種信道環(huán)境下表現(xiàn)優(yōu)越。實(shí)測(cè)數(shù)據(jù)進(jìn)一步驗(yàn)證了采用所提出的信道估計(jì)算法可較大提升參考信號(hào)的重構(gòu)質(zhì)量，從而有利于目標(biāo)探測(cè)。
- 外輻射源雷達(dá) /
- 地面數(shù)字多媒體廣播 /
- 參考信號(hào)重構(gòu) /
- 信道估計(jì)
Abstract: The steady reference signal reconstruction is one of the key technologies of passive radar with digital waveform, and the accuracy of channel estimation is directly related to the reference signal purity. To deal with the problem of reference signal reconstruction for Digital Terrestrial Multimedia Broadcasting (DTMB) based passive radar when the receiving system samples at a non-integer multiples of the symbol rate, an improved channel estimation is proposed on the basis of matching pursuit algorithm which is based on the compression perception. Simulation results show that compared to the widely used time domain correlation algorithm and the Least Squares (LS) algorithm, the improved algorithm has better frequency adaptability and robustness, and performs superiorly in various channel environments. Real data processing results further demonstrate that it significantly raises the quality of the reconstructed signal using the proposed algorithm and provides a better condition for the target detection.
- Passive radar /
- Digital Terrestrial Multimedia Broadcasting (DTMB) /
- Reference signal reconstruction /
- Channel estimation

HTML全文

參考文獻(xiàn)(25)

萬顯榮, 易建新, 程豐, 等. 單頻網(wǎng)分布式外輻射源雷達(dá)技術(shù)[J]. 雷達(dá)學(xué)報(bào), 2014, 3(6): 623-631. doi: 10.12000/JR14156.

WAN Xianrong, YI Jianxin, CHENG Feng, et al. Single frequency network based distributed passive radar technology[J]. Journal of Radars, 2014, 3(6): 623-631. doi: 10.12000/JR14156.

PETO T and SELLER R. Quad channel DVB-T based passive radar[C]. 2016 17th International Radar Symposium, Krakow, 2016: 1-4. doi: 10.1109/IRS.2016.7497383.

SUN W, SAHR J D, and GOODSON T. Digital demodulation of DTV signals for passive radar application[C]. 2016 IEEE Radar Conference(RadarConf), Philadelphia, PA, 2016: 1-5. doi: 10.1109/RADAR.2016.7485164.

PALMER J, SUMMERS A, UMMENHOFER M, et al. Receiver platform motion estimation using terrestrial broadcast transmitters for passive radar[C]. 2015 IEEE Radar Conference, Johannesburg, 2015: 151-155. doi: 10.1109/RadarConf.2015.7411871.

唐慧, 萬顯榮, 陳偉, 等. 數(shù)字地面多媒體廣播外輻射源雷達(dá)目標(biāo)探測(cè)實(shí)驗(yàn)研究[J]. 電子與信息學(xué)報(bào), 2013, 35(3): 575-580. doi: 10.3724/SP.J.1146.2012.00939.

TANG Hui, WAN Xianrong, CHEN Wei, et al. Experiment on target detection with passive radar based on digital terrestrial multimedia broadcasting[J]. Journal of Electronics Information Technology, 2013, 35(3): 575-580. doi: 10.3724 /SP.J.1146.2012.00939.

張各各, 王俊, 劉玉春. 一種基于數(shù)字電視地面廣播照射源的外輻射源雷達(dá)快速雜波相消算法[J]. 電子與信息學(xué)報(bào), 2013, 35(1): 36-40. doi: 10.3724/SP.J.1146.2012.00669.

ZHANG Gege, WANG Jun, and LIU Yuchun. A fast cancellation algorithm for DTTB-based passive radar system [J]. Journal of Electronics Information Technology, 2013, 35(1): 36-40. doi: 10.3724/SP.J.1146.2012.00669.

FENG Yuan, SHAN Tao, LIU Shengheng, et al. Interference suppression using joint spatio-temporal domain filtering in passive radar[C]. 2015 IEEE Radar Conference(RadarCon), Arlington, VA, 2015: 1156-1160. doi: 10.1109/RADAR.2015. 7131168.

WAN Xianrong, WANG Junfang, HONG Sheng, et al. Reconstruction of reference signal for DTMB based passive radar systems[C]. 2011 IEEE CIE International Conference on Radar, Chengdu, 2011: 165-168. doi: 10.1109/CIE-Radar. 2011.6159501.

饒?jiān)迫A, 明燕珍, 林靜, 等. WiFi外輻射源雷達(dá)參考信號(hào)重構(gòu)及其對(duì)探測(cè)性能影響研究[J]. 雷達(dá)學(xué)報(bào), 2016, 5(3): 284-292. doi: 10.12000/JR15108.

RAO Yunhua, MING Yanzhen, LIN Jing, et al. Reference signal reconstruction and its impact on detection performance of WiFi-based passive radar[J]. Journal of Radars, 2016, 5(3): 284-292. doi: 10.12000/JR15108.

SONG Bowei, GUI Lin, GUAN Yunfeng, et al. On channel estimation and equalization in TDS-OFDM based terrestrial HDTV broadcasting system[J]. IEEE Transactions on Consumer Electronics, 2005, 51(3): 790-797. doi: 10.1109/ TCE.2005.1510485.

郝增玉. DTMB系統(tǒng)信道估計(jì)算法的研究與改進(jìn)[D]. [碩士論文], 天津大學(xué), 2009.

HAO Zengyu. Research and improvement in channel estimation for DTMB system[D]. [Master dissertation], Tianjin University, 2009.

LIU M, CRUSSIERE M, HELARD J, et al. Improved channel estimation methods based on PN sequence for TDS- OFDM[C]. 2012 19th International Conference on Telecommunications (ICT), Jounieh, 2012: 1-5. doi: 10.1109/ CTEL.2012.6221259.

WANG Yizhi, CHEN Yun, GE Yunlong, et al. A channel estimation scheme for Chinese DTTB system combating long echo and high doppler shift[C]. 2011 IEEE International Symposium of Circuits and Systems, Rio de Janeiro, 2011: 462-465. doi: 10.1109/ISCAS.2011.5937602.

HU Yuanzhou, MA Kai, CHEN Yun, et al. Low cost full mode channel estimation for DTMB system[C]. 2014 12th IEEE International Conference on Solid State and Integrated Circuit Technology, Guilin, 2014: 1-3. doi: 10.1109/ICSICT. 2014.7021693.

GAO Zhen, DAI Linglong, SHEN Wenqian, et al. Temporal correlation based sparse channel estimation for TDS-OFDM in high-speed scenarios[C]. 2015 IEEE Military Communications Conference, Tampa, FL, 2015: 798-803. doi: 10.1109/MILCOM.2015.7357542.

BAJWA W U, HAUPT J, RAZ G, et al. Compressed channel sensing[C]. 2008 42nd Annual Conference on Information Science and Systems, Princeton, 2008: 1-6. doi: 10.1109/CISS. 2008.4558485.

COTTER S F and RAO B D. Sparse channel estimation via matching pursuit with application to equalization[J]. IEEE Transactions on Communications, 2002, 50(3): 374-377. doi: 10.1109/26.990897.

TROPP J A and GILBERT A C. Signal recovery from random measurements via orthogonal matching pursuit[J]. IEEE Transactions on Information Theory, 2007, 53(12): 4655-4666. doi: 10.1109/TIT.2007.909108.

李明陽, 柏鵬, 王徐華, 等. 基于壓縮感知的稀疏多徑信道估計(jì)[J]. 系統(tǒng)工程與電子技術(shù), 2013, 35(5): 909-913. doi: 10.3969/j/issn.1001-506X.2013.05.02.

LI Mingyang, BAI Peng, WANG Xuhua, et al. CS-based sparse multipath channel estimation[J]. Journal of Systems Engineering and Electronics, 2013, 35(5): 909-913. doi: 10.3969/j.issn.1001-506X.2013.05.02.

相關(guān)文章

施引文獻(xiàn)

資源附件(0)

訪問統(tǒng)計(jì)