摘要
阐述了一个比相单脉冲自跟踪系统的设计方案,利用系统仿真软件Systemview建立了对宽带QPSK信号进行自跟踪解调的系统仿真模型。详细分析了此跟踪系统中和差通道相对相位的变化对系统工作的影响,给出了和差信号相对相位变化与跟踪解调输出的误差电压关系表格。总结了自跟踪系统外场整机联调的关键步骤。
The paper introduces the design and simulation of a phase comparison monopulse auto-tracking system which is single channel.The software ＂Systemview＂ of ELANIC Inc. is used to simulate the auto-tracking system for QPSK signal. The paper particularly analyzes the influence of the variation of relative phase between the sum channel and difference channel. Through simulation, a table which deseribes the relationship between the relative phase variation and error voltage demodulated by the tracking system. At last, several key steps used to adjust the state of auto-tracking system are discussed.
出处
《无线电工程》
2009年第1期36-38,共3页
Radio Engineering
