| 摘要 |
<p>PURPOSE:To generate a code and to improve the self correlation by transmitting and receiving a secondary modulated carrier wave after the primary modulation using a transmission signal in the three types of modulation states and demodulating it by a primary demodulator after the re-modulation by the secondary modulator in the three types of modulation states allocated by the second logic device. CONSTITUTION:First and second logic devices A and B allocate value of each point of parallel data with more than two bits to the three types of modulation states with two types of phase states of BPSK and no signal stage from the parallel output of two or more binary pseudo noise source. A transmitter modulates the output of a carrier oscillator by the primary modulator using a transmission signal, further modulates it by the secondary modulator in a modulation state allocated by the device A to be transmitted by a transmission circuit. A receiver receives it to demodulate it to a receiving signal by the primary demodulator after the re-modulation by the secondary modulator. Thus, the perspective is suppressed, a code is generated, and the self correlation characteristic is improved.</p> |
