It introduces a method that USES FX489 to complete GMSK modulation and demodulation, it's performances is analyzed.
提出了一种利用FX489实现GMSK调制解调的方法，分析了其性能。
Modulation method and apparatus, demodulation method and apparatus, transmitting method and device.
调制方法与装置，解调方法与装置，传输方法与装置。
Modulation method and apparatus, demodulation method and apparatus, recording media, transmitting method and device.
调制方法与装置，解调方法与装置，记录媒体，传输方法与装置。
This paper introduces a method of FSK modulation and demodulation using CMOS phase locked-loop chip CD4046.
文章介绍了一种利用CMOS锁相环芯片CD 4046实现FSK信号调制与解调的方法。
Then, the paper introduces the math module and achieving method of software modulation and demodulation of common digital modulating signals used in telecontrol & telemetry system.
接着介绍了遥控遥测常用的数字调制信号的软件调制解调的数学模型和实现方法。
Using two-dimensional signal vectors, the process of Doppler shift modulation and demodulation is analyzed, and a signal processing method for extracting flow speed information is derived.
如何测量回波的多普勒频移，实现测流速的目的。 文中从二维信号矢量的角度分析了多普勒频移调制和解调的过程，推导出提取速度信息的信号处理方法。
The research method is using VC programming to realize the modulation and demodulation of the signal by audio-card.
本文研究的方法是通过VC编程实现用声卡对信号的调制解调。
The research method is using VC programming to realize the modulation and demodulation of the signal by audio-card.
本文研究的方法是通过VC编程实现用声卡对信号的调制解调。
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