| 摘要 |
<p>PURPOSE:To improve the resolution by extracting a part of a transmitting output signal, forming a correcting data for minimizing an error of said signal and a reference signal, and executing a control. CONSTITUTION:A series of encoding signals which have been stored 3 in advance are brought to a read-out control 2, and sent out to a D/A converting circuit 4. The circuit 4 converts successively a series of encoding signals D1 which are sent out 3, to an analog, and sends out a transmitting signal (g) to which a prescribed frequency modulation has been performed, to a frequency converting means 45. The means 45 brings the signal (g) to filtration and frequency conversion, forms a transmitting signal (h), brings the signal (h) to power amplification processing 46, form a transmitting output signal (i) of necessary power, and sends it out through a coupler 7. Subsequently, an output wave detecting means 8 forms an output wave detecting signal D2 which has brought a part of the signal (i) to frequency and A/D conversion processings, and sends it out to an error detecting means 9. The means 9 compares a reference encoding data and an output wave data, generates an error detecting signal (r) with regard to each data, and sends it out to a correcting data generating circuit 10. The circuit 10 generates a correcting data for minimizing an error, and an encoding data of the circuit 3 is corrected.</p> |
