| 摘要 |
<p>In a noise sequence generator, a plurality of memories store plural types of noise sequences that are non-correlated with each other, respectively. A noise sequence readout section reads out the noise sequences stored in the plurality of memories so that the code periods are prime numbers of each other. A sequence-adding section adds the noise sequences read out in parallel from the plurality of memories by means of the noise sequence readout section, thereby outputting the addition result as a series of noise sequences. In a CN controller, a setting section sets a value to determine an amplitude of a digital modulation signal row to a register. A multiplying section multiplies the setting value of the register by the to-be-inputted digital modulation signal row. A CN adding section adds a series of noise sequences outputted from the sequence adding section of the noise sequence generator to an output of the multiplying section, and outputs the addition result. <IMAGE></p> |
