基于DSP和复解析带通滤波器的MSK实现

2011 IEEE International Conference on Computer Science and Automation Engineering Pub Date : 2011-06-10 DOI:10.1109/CSAE.2011.5953210

Kuifu Wang, Juming Cheng

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引用次数: 3

摘要

提出了一种基于数字信号处理(DSP)和复解析带通滤波器的最小频移键控(MSK)方法。根据输入数据的位值，直接产生MSK复带通信号，然后进行复解析带通滤波，提取复带通信号的实部，实现MSK调制。对MSK接收信号进行采样，然后进行复带通滤波，得到复带通信号。将复带通信号与其延迟版本的共轭信号以及相移因子乘在一起。根据乘积的虚部恢复原始数据。介绍了复合带通滤波器的设计方法。

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The implementation of MSK based on DSP and complex analytic bandpass filter

A novel method of minimum frequency shift keying (MSK) based on digital signal processing (DSP) and complex analytic bandpass filter is proposed. According to the bit value of the input data, the MSK complex bandpass signal is directly produced and then is complex analytic bandpass filtered, the real part of the complex bandpass signal is fetched to achieve the MSK modulation. The receiving signal of MSK is sampled, and then complex bandpass filtered to attain the complex bandpass signal. The complex bandpass signal and conjugate signal of its delayed version and the phase shift factor are multiplied together. According to the imaginary part of the product, the original data is recovered. The design method of complex bandpass filter is introduced also.

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2011 IEEE International Conference on Computer Science and Automation Engineering

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