發(fā)布時(shí)間：2018-03-01 12:17

  本文關(guān)鍵詞： Lattice 高脈沖重復(fù)頻率 距離模糊 噪聲補(bǔ)償 時(shí)間效率 MATLAB 脈沖重復(fù)率　出處：《西北工業(yè)大學(xué)學(xué)報(bào)》2017年01期 　論文類型：期刊論文

【摘要】：在高脈沖重復(fù)頻率多普勒雷達(dá)的工程應(yīng)用中,存在著無法避免的距離模糊問題。提出了一種基于Lattice的解距離模糊新算法。首先給出了距離模糊問題的數(shù)學(xué)模型,將距離模糊問題轉(zhuǎn)化為L(zhǎng)attice中求解最近點(diǎn)的問題;然后證明了模型滿足Babai算法的使用條件,提高求解效率;接著針對(duì)脈沖重復(fù)周期提出了擴(kuò)倍的處理方案,放寬了算法對(duì)于雷達(dá)參數(shù)的要求;最后結(jié)合Lattice中Voronoi單元的基本性質(zhì)提出了噪聲補(bǔ)償方案,根據(jù)模糊量測(cè)的整數(shù)部分和小數(shù)部分補(bǔ)償出真實(shí)的量測(cè)整數(shù)部分的組合,使算法具有工程可行性。實(shí)驗(yàn)仿真表明,該算法可以同時(shí)滿足時(shí)間效率和求解精度的要求。
[Abstract]:In the engineering application of high pulse repetition frequency Doppler radar, there is an unavoidable range fuzzy problem. A new range fuzzy algorithm based on Lattice is proposed. Firstly, the mathematical model of range fuzzy problem is given. The distance fuzzy problem is transformed into the problem of solving the nearest point in Lattice. Then it is proved that the model satisfies the conditions of the Babai algorithm and improves the efficiency of the solution. Finally, combining with the basic properties of the Voronoi element in Lattice, the noise compensation scheme is proposed, and the combination of the real measurement integer part and the integer part is compensated according to the integer part and the fractional part of the fuzzy measurement. The experimental results show that the algorithm can meet the requirements of both time efficiency and accuracy.
【作者單位】： 西北工業(yè)大學(xué)自動(dòng)化學(xué)院;
【基金】：航空科學(xué)基金(20152853029)資助
【分類號(hào)】：TN958

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本文編號(hào)：1551880