RANDOM PHASE MODULATION METHOD DEPENDING ON COMMUNICATION DISTANCE
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United States of America Patent
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Issued Date -
Dec 28, 2023
app pub date -
Apr 29, 2021
filing date -
Apr 29, 2021
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Abstract
A random phase modulation method depending on a communication distance is provided. In the method, time synchronization is carried out by means of a transmitter and a receiver, a local random signal is generated, and an original signal to be sent is pre-coded according to a transmission delay and the generated local random signal, such that random phase modulation depending on a communication distance is realized, potential security brought about by positions of the transmitter and the receiver is fully utilized, a receiver at an expected distance position can receive a signal with a correct phase, and a receiver at another distance position receives a signal with a scrambled phase, thereby improving the secure communication capability of a wireless communication system in terms of the dimension of space.
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