基于多DSP并行处理的鱼雷仿真信号源

Torpedo Imitation Waveform Generator Based on Multi-DSP Parallel Processing

针对鱼雷声自导仿真对阵列信号需求的多样性和复杂性,利用多片ADSP—21262并行处理开发了一种新型仿真信号源系统;该信号源基于多级流水线结构,充分发挥多DSP并行处理的优势,通过合理的总线管理和数据流控制,在空间和时间方面,提高了多DSP信号处理能力;针对多通道信号波束合成的延时,系统采用了相位延迟法和延时滤波算法,论文阐述了两种算法的实现方法,并对其优缺点进行了比较;应用结果表明,该系统运行稳定可靠,满足了声自导仿真的需要。

To meet the complex need of signal for Torpedo Acoustic Homing Imitation, a new imitation waveform generator made up of parallel processing multi-ADSP21262 is designed. It is based on pipelining structure, and takes full advantage of multi-DSP parallel processing. Through efficient bus management and data stream controlment, it enhances the capability of signal processing in the factor of time and space. For the muhi-channal beamforming delay, the system introduces the phase delay and delay-filter delay. The paper discusses the realization of the two methods, and compares them. The application shows that this system runs stably and accurately, and meets the need of the Torpedo Acoustic Homing Imitation.