In ultrasonic pressure measuring outside pipe, echo signal is disturbed by noise.

超声测压过程中信号受到噪声的干扰, 使得回波信号质量较差.

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A new echo signal simulation method based data matrix of point object is put forward.

回波信号模拟是合成孔径雷达模拟技术的基础.

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Secondly, we establish the model of high - speed targets, and calculate the echo signal.

接着本文着重讨论了高速运动的目标模型, 并推导得到了高速运动目标的回波的形式.

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