| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a spread spectrum transmitter for conducting multi-code transmission that reduces the capacity of a memory. SOLUTION: An amplifier applies power amplification to a filter signal to provide an output of an amplified signal as a transmission output signal. A detector 100 outputs a detection signal, on the basis of the transmission output signal. A filter 110A averages the detection signal to provide an averaged signal. If the averaged signal from the filter 110A is a signal, resulting from averaging of the voltage level of the detection signal from the detector 100, then the voltage level of the averaged signal will become constant, depending on the target transmission power level, when the object transmission power level is set constant; and the memory has only to store only transmission power data, in response to each of the object transmission power levels as a single transmission power map.</p> |
