【摘要】 针对模拟水下目标的回波,研究了一种对大动态范围内的声纳信号进行增益控制及应答的方法。方法采用数字波形存贮技术,数字增益控制技术,对所接收的信号波形进行处理,并采用数字波形恢复技术恢复并转发该信号,具有波形模拟逼真、应答精度高等优点。本文论述了该方法的工作原理、系统硬件实现方案及水池实验的结果。更多还原

【Abstract】 A method of gain controlling and responding of the large dynamic sonar signal is discussed on the underwater taget echo simulation. The signal is processed with digital waveform storage and digital gain control technique, and digital waveform restoring technique is used to restore and transmit the signal. Therefore, this method has the advantages of good simulation and high precision of responding. The principle of this method,the hardware and the tank test’s results are discussed in this paper.更多还原