调频解调的正交检测方法

2013 Third International Conference on Advances in Computing and Communications Pub Date : 2013-08-29 DOI:10.1109/ICACC.2013.92

Sona Sunny, J. John, T. J. Apen

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引用次数: 1

摘要

远程指挥系统能够在飞行过程中控制运载火箭。指挥系统在uhf波段链路上使用FM/FSK调制。本文研究了调频解调中不同的正交检测方法，如圆弧法、CORDIC矢量旋转法等，并在MATLAB中进行了仿真。然后从信噪比、频谱和复杂度等方面对算法进行了比较，找出了适用于航天器遥控接收机的最佳算法。同样的算法也在VHDL中实现。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Quadrature Detection Methods for FM Demodulation

The Telecommand system enables the control of launch vehicle during the flight. Command system uses a FM/FSK modulation on a UHF-Band link. In this paper, different quadrature detection methods for FM demodulation like arc tan method, CORDIC vector rotation method etc. are studied and simulated in MATLAB. The Algorithms are then compared based on SNR, frequency spectrum and complexity so as to find out the best algorithm for a telecommand receiver in a spacecraft. Same algorithm is implemented in VHDL also.

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来源期刊

2013 Third International Conference on Advances in Computing and Communications

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