基于筛选法的球载雷达解距离模糊改进方法
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摘要
针对球载雷达多目标解距离模糊时面临的目标视在距离重合而不能进行正确解算、目标需要与距离门正确配对等问题,根据筛选法提出了一种改进的解距离模糊方法。该方法不需要目标与距离门正确配对,计算方法简便快捷,并且弥补了目标视在距离相同时筛选法无法准确解模糊的缺点。通过该方法与传统算法各方面进行性能比较,体现了其同样有良好的解模糊能力和纠错能力。仿真结果表明,在目标视在距离重合和有测距误差的情况下该方法也可以很好地解模糊,验证了该方法的有效性。
Resolving multiple target range ambiguity for balloon-borne radar has many problems. For example,when the targets have same apparent distance,traditional algorithms cannot resolve the real range of every target. Besides,the targets and distance gates match correctly is needed,etc. Aiming at these problems,an improved algorithm is proposed. This method doesn't need target and range gate match correctly,simple in calculation,and makes up the shortcoming of screening method that it can't resolve range ambiguity when the two targets have same apparent range. The performance of improved algorithm is compared with the traditional method,the results reflect that this method also has good capability for ambiguity resolution and error correcting. The simulation results show that the method can resolve range ambiguity accurately when the targets have same apparent range and range error. And simulation results show the validity of this method.
Resolving multiple target range ambiguity for balloon-borne radar has many problems. For example,when the targets have same apparent distance,traditional algorithms cannot resolve the real range of every target. Besides,the targets and distance gates match correctly is needed,etc. Aiming at these problems,an improved algorithm is proposed. This method doesn't need target and range gate match correctly,simple in calculation,and makes up the shortcoming of screening method that it can't resolve range ambiguity when the two targets have same apparent range. The performance of improved algorithm is compared with the traditional method,the results reflect that this method also has good capability for ambiguity resolution and error correcting. The simulation results show that the method can resolve range ambiguity accurately when the targets have same apparent range and range error. And simulation results show the validity of this method.
引文
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[15]蒋凯,李明.一种PD雷达解距离模糊的新算法[J].火控雷达技术,2008,37(2):25-28.
[16]王娜,谭顺成,王国宏,等.基于IMM的高脉冲重复频率雷达解距离模糊方法[J].系统工程与电子技术,2011,33(9):1970-1977.
[17]王英.对空监视雷达PRF设计与相参积累检测技术[D].[硕士论文].西安电子科技大学,2017.
[2]王成浩,廖桂生,许京伟. FDA-SAR高分辨宽测绘带成像距离解模糊方法[J].电子学报,2017,45(9):2085-2091.
[3]洪兴勇.基于快速余差查表法的脉冲多普勒雷达解距离模糊算法[J].微型机与应用,2017,36(4):84-86.
[4]戴文琪,王家隆,曾建瑜.余数法解距离模糊的检错、纠错条件[J].电子学报,1988(06):95-100.
[5] Huang Z X,Wan Z. Range Ambiguity Resolution in Multiple PRF Pulse Doppler Radars[C]. IEEE International Conference on Acoustics Speech and Signal Processing,Dallas,USA,1987:1786-1789.
[6] Lei W,Long T,Han Y. Resolution of range and velocity ambiguity for a medium pulse Doppler radar[C]. Radar Conference,Alexandria,VA,2000. The Record of the IEEE 2000 International. IEEE,2002:560-564.
[7] Trunk G,Brockett S. Range and velocity ambiguity resolution[C]. Radar Conference,Lynnfield,USA,1993.Record of the 1993 IEEE National. IEEE,2002:146-149.
[8]周闰,高梅国,戴擎宇,等.余差查表法解单目标距离模糊的分析和仿真[J].系统工程与电子技术,2002(05):30-31.
[9]曹宇燕,马天力,张阳,等.基于Lattice的高脉冲重复频率雷达解距离模糊算法[J].西北工业大学学报,2017,35(1):43-49.
[10] Na W,Wang G H. Range ambiguity resolving of HPRF radar based on hybrid filter[J]. Science China(Information Sciences),2011,54(7):1534-1546.
[11] YU Hongbo,Wang G,WU Wei,et al. A novel RHTTBD approach for weak targets in HPRF radar[J]. Science China,2016,59(12):122304.
[12]周闰,高梅国,韩月秋.余差查表法解多目标距离模糊算法[J].北京理工大学学报,2002,22(2):221-223.
[13] Li M,Li M,Zuo L. A high efficient range ambiguity resolution algorithm for PD radar base on one-dimensional set[C]. International Conference on Graphic&Image Processing,Brussels,Belgium,2011:170-177.
[14]宋悦刚,安红.一种中重频下联合解距离速度模糊的新算法[J].火控雷达技术,2009,38(1):15-18.
[15]蒋凯,李明.一种PD雷达解距离模糊的新算法[J].火控雷达技术,2008,37(2):25-28.
[16]王娜,谭顺成,王国宏,等.基于IMM的高脉冲重复频率雷达解距离模糊方法[J].系统工程与电子技术,2011,33(9):1970-1977.
[17]王英.对空监视雷达PRF设计与相参积累检测技术[D].[硕士论文].西安电子科技大学,2017.