| 摘要 |
<p>A modulator of small size, low cost, low power consumption, small heat generation, and less spurious signals. The modulator comprises multipliers (101, 102) for code-modulating received transmission data (D(n), C(n)) and outputting the modulated data, a complex computing section (120), a data channel gain factor signal generator (106) for generating a gain control signal, a control channel gain factor signal generator (107), and weighting coefficient setting signal generators (108, 109) for receiving the output of the complex computing section (120) and controlling the gains of the raised cosine filters (110 to 113).</p> |
