伪码调相与线性调频复合近程探测系统分析与仿真

摘要伪随机码调相与线性调频复合体制近程探测系统是通过对线性调频信号的伪随机码调相实现复合调制的近程探测系统。该近程探测系统利用了伪随机码信号良好的定距性能，同时利用了线性调频信号以改变单一伪随机码调相信号的频谱，增加了近程探测系统的抗干扰性能，降低了多卜勒信号对探测系统回波信号处理的影响，实现对到目标的距离以及目标速度的测量。 26015
本文的内容主要包括下面几个方面：
(1)对线性调频探测系统，伪码调相探测系统以及伪码调相与线性调频复合探测系统的原理进行分析。
    (2)对线性调频探测系统以及伪码调相与线性调频复合探测系统各个阶段的信号进行分析。
    (3)完成线性调频探测系统和伪码调相与线性调频复合探测系统的系统搭建与仿真。
关键词伪随机码调相，线性调频，复合，近程探测系统
Title    Analysis and simulation of complex short range detection
system using pseudo-code phase modulation and linear frequency
modulation
Abstract
The pseudo-code phase modulation and linear frequency modulation (LFM) composite
system of short range detection system through the linear frequency modulation
signal and the pseudo random code phase modulation to achieve complex modulation
short-range detecting system. The short range detection system using the pseudo
random code signal good set from the performance, and the use of linear FM signal
to change the single pseudo random code phase modulation signal spectrum, increase
the anti interference performance of the short range detection system, reducing
the impact of Doppler signal of fuze echo signal processing, achieve the target
range and velocity measurement.
The main contents of this paper are as follows.:
(1) for linear frequency modulation detection system, pseudo random code phase
modulation detection system and principle of pseudo-random code phase modulation
and linear frequency modulation (LFM) compound detection system were analyzed.
(2) the LFM detection system and pseudo code phase modulation and linear frequency
modulation composite detection system for the various stages of the analysis.
(3) to complete the system of LFM detection system and pseudo code phase modulation
and linear frequency modulation combined detecting system construction and
simulation.
Keywords    pseudo-code phase modulation ,linear frequency modulation ,complex ,
short range detection system 目录
1 绪论 . 1
1.1 近程探测系统概述    1
1.2 本文的章节安排    1
2 伪码调相与线性调频复合探测系统的探测原理 . 3
2.1 伪码调相探测系统的工作原理    3
2.2 线性调频探测系统的工作原理    7
2.3 复合探测系统的工作原理 . 10
3 线性调频探测系统的系统仿真和信号分析    16
3.1 线性调频系统仿真 . 16
3.2 线性调频系统信号分析 . 16
3.3 线性调频系统对动目标速度测量的仿真和分析 . 20
4 伪码调相与线性调频复合探测系统的系统仿真和信号分析    23
4.1 伪随机码调相与线性调频复合引信参数选择 . 23
4.2 伪码调相与线性调频复合系统仿真 . 23
4.3 伪码调相与线性调频复合系统信号分析 . 25
结论 . 33 伪码调相与线性调频复合近程探测系统分析与仿真:http://www.751com.cn/tongxin/lunwen_20051.html