Dynamic Notching Module

The Navy is looking to develop a method for notching out tunable frequency bands from the output of a high power wideband jammer. The notches must be synchronized with rapid frequency hopping radios, tuning within 1 KHz in less than 1 uS. The method must support at least 8 notches, each reducing power by at least 30 dB in a width ranging from 15 KHz to 10 MHz. Bedford Signals proposes to solve this problem by combining our advanced capabilities in high bandwidth digital signal processing (DSP) hardware with our extensive experience in sophisticated DSP algorithm development. Specifically, we intend to use DSP to integrate at least 8 instantly tunable open loop notch filters, with closed loop filters to remove harmonics and spurs. Study confirms that COTS components can support Navy requirements.