High power amplified noise modules can be used to simulate jammers for RF systems such as missile guidance systems. With the vast usage of GPS for guidance systems today, significant effort has been made to develop anti-jamming systems for the GPS receiver. In order to test these systems, one needs to exercise them with simulated jamming signals. Noise can be used for this in two different ways. The first is to blast white Gaussian noise in the receiver's frequency band. The second is to feed noise into the tuning control of a VCO. For the former, the frequency response is flat and the probability density function is Gaussian. In the latter, the frequency response is Gaussian and the PDF follows that of a sinusoidal signal.
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Link to Amplified Noise Modules product data sheets |