本文選題：認(rèn)知雷達(dá)　切入點(diǎn)：起伏目標(biāo)　出處：《系統(tǒng)工程與電子技術(shù)》2017年05期 　論文類型：期刊論文

【摘要】：認(rèn)知雷達(dá)通過對(duì)探測(cè)環(huán)境的感知實(shí)現(xiàn)對(duì)感興趣目標(biāo)的探測(cè)�？紤]雜波和噪聲中的起伏目標(biāo)的認(rèn)知雷達(dá)探測(cè)問題,建立從接收機(jī)到發(fā)射機(jī)的反饋支路,使得雷達(dá)與探測(cè)環(huán)境之間構(gòu)成一個(gè)閉環(huán);采用期望最大算法對(duì)探測(cè)環(huán)境中的目標(biāo)參數(shù)進(jìn)行估計(jì);利用接收機(jī)獲得的反饋信息,采用信雜噪比最大準(zhǔn)則設(shè)計(jì)下一次迭代所需的發(fā)射波形。計(jì)算機(jī)仿真分析表明,采用了認(rèn)知雷達(dá)閉環(huán)探測(cè)結(jié)構(gòu),可以有效增加探測(cè)環(huán)境信息獲取的效率,因此相對(duì)于常規(guī)雷達(dá)而言,具有更好的探測(cè)能力。
[Abstract]:Cognitive radar detects objects of interest by perceiving the detection environment. Considering the problem of cognitive radar detection of fluctuating targets in clutter and noise, a feedback branch from receiver to transmitter is established. Make the radar and the detection environment to form a closed loop, using the expected maximum algorithm to estimate the target parameters in the detection environment, using the feedback information obtained by the receiver, The signal-to-noise ratio maximum criterion is used to design the transmitted waveform for the next iteration. The computer simulation results show that the closed-loop detection structure of cognitive radar can effectively increase the efficiency of environmental information acquisition. Therefore, compared with conventional radar, it has better detection capability.
【作者單位】： 空軍工程大學(xué)信息與導(dǎo)航學(xué)院;
【基金】：國(guó)家自然科學(xué)基金(61571456) 陜西省自然科學(xué)基金(2016JM0644)資助課題
【分類號(hào)】：TN958
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本文編號(hào)：1582597