作者: Gary R. Lomp
DOI:
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摘要: A variable bandwidth filter device for use with a spread-spectrum transmitter including chipping sequence generator, processing means, an impulse and filter. The chipping-sequence generator generates signal having chipping-sequence-signal bandwidth. Using the signal, means processes data to generate spread-data spread greater than In response each chip in signal. filters spectrum of bandpass equal invention also comprises method generating using rate less includes steps sequence, responsive chip, filtering