【摘要】：多源空間配準是雷達數(shù)據(jù)處理中的一個重點研究方向。尤其是復(fù)雜環(huán)境條件下,系統(tǒng)誤差的存在對配準結(jié)果精度將造成非常大的影響。因此,系統(tǒng)誤差的處理是提高配準結(jié)果精度的關(guān)鍵。本文針對該問題進行了一些相關(guān)研究工作,具體內(nèi)容包括以下幾個方面:(1)針對廣義最小二乘算法在WGS-84 (World Geodetic System-84)坐標系中存在收斂速度慢及收斂性能不穩(wěn)定的問題,對廣義最小二乘算法進行了改進。改進的算法以收斂步數(shù)作為最小二乘算法中的量測精度加權(quán)因子,使得量測精度隨著步數(shù)的變化而變化,從而實現(xiàn)了收斂步數(shù)的減少和收斂之后穩(wěn)定性的改善,提高了目標跟蹤定位的性能。仿真結(jié)果表明,改進的廣義最小二乘算法優(yōu)于廣義最小二乘算法,進一步驗證了該算法的有效性。(2)為了解決雷達組網(wǎng)中誤差配準異常導(dǎo)致定位結(jié)果不準確這一問題,對約束總體最小二乘算法進行了改進。改進的算法通過建立步長因子與步數(shù)之間的非線性函數(shù)關(guān)系,使得算法在初始階段具有步長較大而穩(wěn)態(tài)時步長較小的特點,因此能同時獲得較快的收斂速度和較小的穩(wěn)態(tài)誤差,從而降低了異常誤差配準對定位精度的影響,使定位結(jié)果更加準確。理論推導(dǎo)與仿真結(jié)果表明,變步長約束總體最小二乘算法優(yōu)于約束總體最小二乘算法,進一步驗證了該算法的有效性。(3)介紹了利用MFC開發(fā)軟件實現(xiàn)多雷達空間配準方法測試軟件開發(fā)的過程。首先在MFC中插入控件,從而可以建立雷達空間配準所需要的一些參數(shù),然后通過按鈕控件調(diào)用C++程序;之后再進行編譯和調(diào)試;最后通過TeeChart顯示雷達誤差配準曲線圖,實現(xiàn)多雷達空間配準方法測試軟件的開發(fā)。
[Abstract]:Multi-source spatial registration is a key research direction in radar data processing. Especially in complex environment, the existence of system error will have a great impact on the accuracy of registration results. Therefore, the processing of system error is the key to improve the accuracy of registration results. In this paper, some related research work has been carried out to solve this problem. The main contents are as follows: (1) in order to solve the problems of slow convergence rate and unstable convergence performance of the generalized least square algorithm in WGS-84 (World Geodetic System-84) coordinate system, the generalized least square algorithm is improved. The improved algorithm takes the convergent step number as the weighted factor of the measurement accuracy in the least square algorithm, which makes the measurement accuracy change with the change of the step number, thus realizing the reduction of the convergence step number and the improvement of the stability after convergence. The performance of target tracking and positioning is improved. The simulation results show that the improved generalized least square algorithm is superior to the generalized least square algorithm, which further verifies the effectiveness of the algorithm. (2) in order to solve the problem of inaccurate location results caused by abnormal error registration in radar network, The constrained total least square algorithm is improved. By establishing the nonlinear function relationship between step size factor and step number, the improved algorithm has the characteristics of large step size and small steady state error in the initial stage, so it can obtain faster convergence speed and smaller steady state error at the same time. Thus, the influence of abnormal error registration on positioning accuracy is reduced, and the positioning results are more accurate. The theoretical derivation and simulation results show that the variable step size constrained total least square algorithm is superior to the constrained total least square algorithm. The effectiveness of the algorithm is further verified. (3) the development process of multi-radar spatial registration method test software using MFC development software is introduced. Firstly, the control is inserted into MFC, so that some parameters needed for radar space registration can be established, and then C program can be called through button control, and then compiled and debugged. Finally, the radar error registration curve is displayed by TeeChart, and the test software of multi-radar spatial registration method is developed.
【學位授予單位】：南京信息工程大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TN95;TP311.52

【參考文獻】

相關(guān)期刊論文 前10條

1 WU Weihua;JIANG Jing;FENG Xun;QIN Xing;;A Sequential Converted Measurement Kalman Filter with Doppler Measurements in ECEF Coordinate System[J];Chinese Journal of Electronics;2016年01期

2 Xiang-yu ZHANG;Guo-hong WANG;Zhen-yu SONG;Jiao-jiao GU;;Hypersonic sliding target tracking in near space[J];Defence Technology;2015年04期

3 張翔宇;王國宏;李俊杰;盛丹;;臨近空間高超聲速滑躍式軌跡目標跟蹤技術(shù)[J];航空學報;2015年06期

4 吳衛(wèi)華;江晶;高嵐;;機載雷達輔助無源傳感器對雜波環(huán)境下機動目標跟蹤[J];控制與決策;2015年02期

5 吳衛(wèi)華;江晶;姜志敏;;WGS-84坐標系下飛機航跡與姿態(tài)仿真研究[J];系統(tǒng)仿真學報;2014年11期

6 吳衛(wèi)華;江晶;張忠磊;李德芳;;WGS-84坐標系下空基多平臺有源傳感器最大似然配準[J];電光與控制;2014年10期

7 吳衛(wèi)華;江晶;;WGS-84坐標系下多空基無源傳感器最大似然配準[J];系統(tǒng)工程與電子技術(shù);2015年02期

8 吳衛(wèi)華;江晶;范雄華;袁俊泉;;WGS-84坐標系下機載單站PDR/DFR無源定位濾波算法[J];系統(tǒng)工程與電子技術(shù);2014年01期

9 李羅鋼;荊武興;高長生;;基于預(yù)警衛(wèi)星系統(tǒng)的臨近空間飛行器跟蹤[J];航空學報;2014年01期

10 吳昊;陳樹新;侯志強;霍辰杰;;一種魯棒的約束總體最小二乘無源定位算法[J];上海交通大學學報;2013年07期

相關(guān)碩士學位論文 前3條

1 折曉宇;多源信息協(xié)同處理與融合方法[D];西安電子科技大學;2013年

2 胡雷;基于最小二乘類的空間配準算法研究[D];杭州電子科技大學;2011年

3 路高勇;多傳感器數(shù)據(jù)空間配準算法研究及工程實現(xiàn)[D];電子科技大學;2010年

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