| 摘要 |
PROBLEM TO BE SOLVED: To compensate for deterioration in transmission quality, resulting from decreased transmission power when a transmission rate is low. SOLUTION: A transmitter is provided with a transmission signal series input terminal 101, a convolution coding circuit 102, a data format generating circuit 103, a primary modulation circuit 104, an extension modulation circuit 105, a D/A converter circuit 106, a transmission radio section 107, a transmission antenna 108, an information amount discrimination circuit 109 and a transmission power instruction circuit 110, and the transmission rate of a transmission signal is varied in response to the increase/decrease in the transmission information amount to control the transmission power, thereby dynamically revising the bundle length and its configuration of the convolution coding means. |
