电光与控制, 2012, 19 (6): 74, 网络出版: 2012-06-06
应答着陆系统测角方案设计
Design of a TLS Angle Measurement Scheme
应答着陆系统 角度测量 数字下变频 数字鉴相器 Transponder Landing System(TLS) angle measurement digital down converter digital phase detector
摘要
从应答着陆系统的基本测角原理入手,设计了系统角度测量的数字电路实现方案。分析了数字下变频和高精度数字鉴相等关键技术。以FPGA为平台,采用CORDIC算法设计数字鉴相器,并在QuartusⅡ环境下进行方案的计算机仿真分析。结果表明,该方案是可行、有效的,能满足系统的精度要求,且易于实现。
Abstract
A digital circuit scheme was designed for realizing angle measurement based on the study on basic angle measurement principle of Transponder Landing System (TLS).Then the key techniques of digital down converter and the highprecision digital phase detector were analyzed.The CORDIC algorithm was used in the design of digital phase detector taking FPGA as the platformand computer simulation was made for the designed scheme in Quartus Ⅱ environment.The simulation result showed that the designed scheme was feasibleeffectiveeasy to realizeand can meet the precision requirement.
杨益欢, 赵修斌, 王伟. 应答着陆系统测角方案设计[J]. 电光与控制, 2012, 19(6): 74. YANG Yihuan, ZHAO Xiubin, WANG Wei. Design of a TLS Angle Measurement Scheme[J]. Electronics Optics & Control, 2012, 19(6): 74.