01-10-2020 дата публикации
Номер: US20200309935A1
Принадлежит:
A system for generating a pulse. In some embodiments, the system includes a processing circuit configured: to reverse the sign of a first group of two consecutive bits of a binary code word; to calculate three phase change bits, of a plurality of phase change bits, according to (−1)k(n)/k(n−1) wherein k(n) is the nbit of the binary code word, n being a positive integer ranging from 2 to 4, and to generate a phase modulation function for a pulse including a sequence of consecutive chips. 1. A system for generating a pulse , the system comprising: calculate a modified code word, the calculating of the modified code word including reversing the sign of a first group of two consecutive bits of a binary code word; and', [{'br': None, 'sup': 'n', 'i': k', 'n', 'k', 'n−, '(−1)()/(1)'}, {'sup': 'th', 'wherein k(n) is the nbit of the binary code word, n being a positive integer ranging from 2 to 4, and'}], 'calculate three phase change bits, of a plurality of phase change bits, according to'}, a second phase value within a second chip of the sequence of consecutive chips, the second chip immediately following the first chip and corresponding to the second phase change bit; and', 'a third phase value within a third chip of the sequence of consecutive chips, the third chip corresponding to the third phase change bit,, 'generate a phase modulation function for a pulse having a sequence of consecutive chips, the phase modulation function being based on the phase change bits, the phase modulation function having], 'a processing circuit configured to the second phase value differs from the first phase value by a constant times the second phase change bit, and', 'the third phase value differs from the second phase value by the constant times the third phase change bit,, 'whereinthe system further comprising a waveform generating circuit connected to the processing circuit, the waveform generating circuit being configured to produce a phase-modulated waveform having a phase ...
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