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Sonar signal processing
Industrial Research has developed novel signal processing receiver architectures enabling cost reduction by sharing hardware over multiple channels. These receiver architectures convert signals to digital earlier with significant cost-benefit. Development that will provide enhanced performance in shallow and other reverberant environments continues.
The receiver architecture implements signal processing algorithms from the sampling point on, to enhance performance and reduce cost. Signal processing implement in the sonar systems as a combination of hardware, FPGA[?] and DSP[?] software provides:
- Cost reductions
- resolution in distance and/or angle that are significantly enhanced over traditional designs,
- improved performance countering reverberation,
- range enhancements for nominal output power,
- beamformed solutions for 2D and 3D sounding with sparse transducer arrays,
- potentially richer sounding information of the target with wide-band signals and processing.
Signal design includes optimised pulses, chirps and sets of signals with optimised correlation properties for multi-channel wide-band systems.
Processing includes a combination of algorithms developed in communications (eg channel sounding, anti-multipath, smart-antennas) and algorithms developed at IRL specifically for enhanced performance sonar.
Implementation is facilitated by our in-house FPGA and DSP capabilities. Read more about these under our IP cores service.