In this paper, one general radar echo simulator based on DDWS technology is introduced.

介绍了一种基于直接数字波形合成技术的通用雷达回波模拟器。

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It is built up with a dual-channel based signal generator on DDWS and a quadrature modulator.

该产生器由DDWS技术双路基带信号产生器和正交调制器组成。

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And the method of DDWS (direct digital wave synthesis) is adopted to realize the signals of MFSK (multi-frequency shift keying) and OFDM (orthogonal frequency division multiplexing).

采用DDWS(直接数字合成)方法，产生了MFSK (m元频移键控)和OFDM(正交频分复用)两种水声通信信号。

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