Direct Sequence Spreading
نویسنده
چکیده
1. To approach channel capacity, it is desirable to make the signal more noiselike.Therefore, we introduce a random number generator, to make the modulation appear random C. A closer look at the modulator/demodulator.1 1. In the standard modulator pair shown in Figure 3, a bit determines whether the transmit filter or its inverse is emitted every seconds. The waveform then passes through the channel, and is corrupted by noise. The resulting signal is passed through a matched filter, and sampled every seconds.
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تاریخ انتشار 1995