The experimental GP-3 radar system was originally designed and built under contract for the Air Force Research Laboratory (AFRL). AFRL sought AFIT's support in characterizing the 'as delivered' performance of the GP-3. This research effort focused exclusively on software modifications and hardware validations related to the GP-3 postprocessing mode. MATLAB¿ was used for development, testing and validation. As modified, tested, and validated, the GP-3's post-processing mode is now fully operational. The GP-3 is capable of transmitting and receiving bandlimited (3.5 MHz) waveforms at X-Band frequencies. As demonstrated, the GP-3 post-processing mode uses MATLAB to generate and post-process waveforms. System characterization tests included, 1) noise performance, 2) frequency response, and 3) linearity/gain relationships. System noise performance characterization permitted establishment of the receiver 'noise floor' and enabled determination of achievable SNRs (-22 dB to 44 dB for internal noise only).
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