Multiple beam section sonar signal processing device

The invention relates to a multi-beam profile sonar signal processing device, characterized in comprising a host computer above water, an emission and control DSP part disposed on the underwater robot, an emission signal conditioning part, a power amplifier, an emission transducer, a, an analog signal acquisition transmitting part, a data receiving port and a DSP parallel signal processing part. The emission and control DSP part connected with the water host computer by cable receives command of water host computer, the emission signal conditioning part amplifies, filters and isolates the analog signal produced by the emission and control DSP part, and then amplified by the power amplifier, the emission transducer emits the signal underwater after electrical/mechanical conversion; the reception transducer receives the echo which is converted to digital signal by the analog signal acquisition transmitting part after performing mechanical/electrical conversion, and transmitted to the data reception port, then transmitted to the water host computer by cable after processing by the DSP parallel signal processing part. The invention can be applied widely in the process of detecting azimuth of undersea oil pipeline.