| 1. | The signal effect in the conventional adaptive side lobe canceller system is studied 首先研究了常规的自适应旁瓣对消系统中的目标效应问题。 |
| 2. | The gsc can retain high performance in interference - reduction under the condition of less array elements 旁瓣对消器可以在阵元较少的情况下依然保持高的干扰抑制性能。 |
| 3. | A new adaptive side lobe canceller algorithm combined with polarization filter is proposed in allusion to the system above 针对该系统提出了结合极化滤波的自适应旁瓣对消新算法。 |
| 4. | And target signal cancellation is a serious problem . many signal processing techniques have been proposed to avoid signal cancellation 因此,在宽带旁瓣对消器中目标信号被消除是一个非常严重的问题。 |
| 5. | The thesis brings forward the scheme that combines polarization filter and side lobe canceller to improve the anti - jamming ability of radar 论文提出将极化滤波与旁瓣对消结合起来提高雷达抗干扰性能的方法。 |
| 6. | To overcome the signal effect , we renovate the auxiliary antenna in the conventional side lobe canceller system to two - orthogonal - channel polarization antenna 为了克服目标效应,将常规旁瓣对消系统的辅助天线改为双极化正交天线。 |
| 7. | And the prototype system would be developed . and this dissertation mainly includes the following work : 1 . the analysis and compare of partial adaptive algorithms in order to choose an optimal algorithm 本论文主要包括以下4部分内容: ( 1 )部分自适应算法研究:对基于广义旁瓣对消结构的padbf和子阵级padbf实现方案进行了算法仿真和比较。 |
| 8. | Thus the main and auxiliary polarization radars form a side lobe canceller system . based on the modeling of this system , an anti - jamming filter algorithm in the polarization - spatial domain is brought forward 针对接收全极化雷达,在其旁边放置全向双极化正交阵列天线与雷达构成旁瓣对消系统,并根据系统模型提出了极化域-空域联合滤波抗干扰算法。 |
| 9. | Theoretical analysis and computer simulation prove that the scheme can overcome the signal effect and improve the anti - jamming ability of radar system . then as to the polarization radar , a scheme that deploys omnidirectional two - orthogonal - channel antenna array besides the main antenna is proposed 理论分析与仿真均验证了,与常规旁瓣对消系统相比,该思路可以有效抑制目标效应,改善雷达系统的抗干扰性能。 |
| 10. | Theoretical analyze and computer simulation prove that the side lobe canceller system using polarization radar can depress jammer while not damaging the signal , the overall performance is better than that of the system using polarization radar only in the auxiliary antenna 理论分析和仿真实验表明使用全极化雷达的旁瓣对消系统,可以在抑制干扰的同时尽量不损失目标信号,系统整体性能优于主天线为单极化时系统的性能。 |