SRC develops highly capable signal and data processors for ground, air and vehicle radar applications, electronic warfare systems and threat simulation receivers. We are regarded as the world leader in counterfire radar signal processing technology and algorithms, having designed and developed the signal/data processor for AN/TPQ-53.
Digital signal and data processing are at the heart of all of SRC’s systems. Our expertise in signal/data processing includes field programmable gate arrays (FPGAs), graphics processing units (GPUs), embedded digital signal processors (DSPs), general purpose processors (GPPs), and most recently in neuromorphic processors.
Digital signal processing features prominently both in waveform generation -- feeding high-speed digital-to-analog converters -- and in the processing of digitized data from advanced, high-bandwidth analog-to-digital front-end receivers. These rugged, low-power systems utilize heterogeneous processing techniques with multiple processors at various bandwidths to make our systems more efficient while significantly reducing size, weight and power (SWaP). Our digital engineers not only choose the processors and design the hardware for digital signal processing, but also perform much of the programming.
Signal and Data Processing in Action
SRC has signal processing experience and expertise in a wide variety of radar and electronic warfare-related areas including signal analysis and identification, bistatic radar, synthetic aperture radar (SAR) processing, multiple-input multiple-output (MIMO), digital beamforming, and space-time adaptive processing (STAP) for on-the-move operation. In addition, SRC has developed special-purpose signal and data processing algorithms for applications such as:
Since the 1990's, SRC has developed and deployed multiple target detection and tracking systems. Our counterfire locator is a de facto industry standard, efficiently producing accurate launch and impact point estimates for artillery and mortars. SRC has also fielded a modern tracking system that utilizes extended Kalman filters employing multiple motion models. Our tracking algorithms combine the output from multiple netted sensors to provide improved accuracy, track formation and track maintenance beyond what the individual contributing sensors can produce and can efficiently work with range-rate and ambiguous measurements.
Adaptive Array Processing
Starting in the 1960s, SRC pioneered adaptive interference cancellation techniques and, in particular, the Howells-Applebaum adaptive processor. (Paul Howells invented the sidelobe canceller and Sid Applebaum developed the theory behind adaptive array operation.) In 1967, this was implemented successfully in the HAPDAR radar, the first multiple-loop sidelobe canceller ever built and tested.
AN/TPQ-53 (formerly the EQ-36) Signal Data Processor
SRC is the designer and producer of the AN/TPQ-53 signal data processor. This compact, FPGA-based, conduction-cooled processor meets MIL-STD environmental and EMI specs and draws upon our long history of counterfire DSP design.