Design Of The Transceiver On The Real-time Location For High-speed Space Capsule

In the high-speed return of detecting moon space capsule, it is necessary to knowits real-time location. The system of multi-station passive location needscommunication equipments of data transmitting and receiving among transceivers. Thispaper is aim to study the transceiver of real-time multi-station passive location forhigh-speed space capsule.Based On the research of air to air and ground to air signal channel, this paperexpounds and proves the key indexes of the system, and then presents the TDD-TDMAas the communication structure of the system. The key technology on this structure isdetail introduced in this paper. The paper accomplishes the isolation design between thetransmitter and the receiver. The paper calculates the AGC response time and the AGCtime constant. It analyses the switching time of receiver and transmitter. It calculates thenecessary guard time to make full use of the bandwidth and make the communicationefficiency maximum. It also can ensure the communication reliability among platformsfar or near. The phase noise is assigned appropriately which makes the parasitic phasemodulation matching to the QPSK system and the phase noise of local oscillatorfrequency source and the locking time are also simulated. The transmitting channel iscalculated by power level allocation and noise allocation. It optimizes the physics indexsuch as miniaturization and low power dissipation. In this paper, many key blocks aredesigned and realized, such as soft analysis, PCB design and so on. Due to these blocks,it can make the test difficulties easy and increase the reliability.The transceiver is tested and the testing results show that the index satisfys therequirements of the system and the requirements of low cost and miniaturization arealso realized.