A novel integrated waveform (IW) for continuous active sonar detection and communications is proposed in this study based on a generalised sinusoidal frequency-modulated signal. This study first introduces the mixed modulation of the IW and a model for the transmitting signal, and then it analyses the time and frequency resolution and anti-reverberation capability of the proposed IW. The performance of two underwater acoustic (UWA) communication receivers based on the proposed IW are compared and analysed under Gaussian noise and multipath conditions. A UWA communication experiment was carried out in Songhua Lake in December 2019. According to the numerical simulation and experimental results, it was concluded that the IW proposed in this study can meet the requirements of active sonar detection and UWA communications with satisfactory performance.

中文翻译：

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集成波形可进行连续有源声纳检测和通信

在这项研究中，基于广义正弦频率调制信号，提出了一种用于连续有源声纳检测和通信的新型集成波形（IW）。本研究首先介绍了IW的混合调制和发射信号模型，然后分析了所提出IW的时间和频率分辨率以及抗混响能力。在高斯噪声和多径条件下，比较并分析了基于所提出的IW的两个水下声学（UWA）通信接收机的性能。2019年12月在松花湖进行了一次UWA通信实验，根据数值模拟和实验结果得出结论，本研究提出的IW能够满足有源声纳探测和UWA通信的要求，性能令人满意。