Low Latency Self Calibrating Constrained Digital Filter

The Army is looking to research and develop a programmable multichannel radio frequency filter-equalizer having a programmable number of channels, each programmable with potentially unequal spacing, bandwidth, and equalization. What is needed is a digitally programmable multichannel filter-equalizer that can perform complex filtering function tailored to multiple applications. The challenging requirements include latency of less than 50 nS, channel bandwidth down to 100 KHz, and 200 MHz bandwidth with 70 dB dynamic range. Bedford Signals proposes to solve this problem by combining our capabilities in high precision high bandwidth custom DSP hardware with our expertise in digital filtering and calibration. Specifically, we intend to integrate our existing equalization, calibration, and response matching algorithms together, and merge them into a low latency version of our frequency hopping notch filter architecture implemented on a custom PCB. The proposed self calibrating hardware design is based on our existing DSP board, and is targeted at a production cost of $6000 each in volume.