Apparatus and method for verifying performance of digital processing board of an RF receiver
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United States of America Patent
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Aug 10, 1999
Grant Date -
N/A
app pub date -
Oct 13, 1994
filing date -
Oct 13, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A testing apparatus for the digital processing portion of a satellite receiver. A software program generates an (I) and (Q) file of root cosine filtered (I) and (Q) DQPSK modulated sampled waveform. The waveform is coupled to a test board that stores the files in a PROM and generates the waveform at a rate determined by the receiver being tested. The output of the test board replaced the A/D converter of the receiver for testing. The waveform impairments are added to the stored software waveform.
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