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中频正交解调仿真及实现
引用本文:林澄清,赵修斌,王翔. 中频正交解调仿真及实现[J]. 舰船电子对抗, 2010, 33(2): 79-82
作者姓名:林澄清  赵修斌  王翔
作者单位:空军工程大学,长春,130022
基金项目:陕西省自然科学基金,项目编号:SJ08F06
摘    要:
针对某型精密进场雷达(PAR)中频相干检波存在的缺点,采用中频采样和正交解调的方法进行数字中频信号处理改进。在Matlab中进行回波中频信号的模拟、平衡式相位检波和数字正交解调的分析仿真,最后结合高速AD9226和复杂可编程逻辑器件(CPLD)技术提出中频数字化的工程设计方法,对工程实践具有一定的参考意义。

关 键 词:雷达  正交解调  数字中频  复杂可编程逻辑器件

Intermediate Frequency Perpendicular Demodulation Simulation And Realization
LIN Cheng-qing,ZHAO Xiu-bin,WANG Xiang. Intermediate Frequency Perpendicular Demodulation Simulation And Realization[J]. Shipboard Electronic Countermeasure, 2010, 33(2): 79-82
Authors:LIN Cheng-qing  ZHAO Xiu-bin  WANG Xiang
Affiliation:Aviation University of Air Force;Changchun 130022;China
Abstract:
According to the disadvantage of intermediate frequency(IF) coherent demodulation in some precision approach radar(PAR),this paper adopts the method of IF sampling and perpendicular demodulation to improve the digital IF signal processing,performs the simulation to the echo IF signal in Matlab,analyzes and simulates the balance phase demodulation and digital perpendicular demodulation,finally brings forward the engineering design method combining the high speed AD9226 and the technique of complex programmab...
Keywords:radar  perpendicular demodulation  digital intermediate frequency  complex programmable logic device  
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