Abstract： According to the requirements of the integrated technology for green intelligent inland ship, a receiver RF front-end design method of multi-channel, wide dynamic and high sensitivity is proposed. This paper discusses the architectural design of the receiver RF front-end, and obtains the design solution through mathematical derivation. Then, a VDES (VHF Data Exchange System) RF front-end is developed, which can be applied in water mobile business area. This RF front-end includes 7 RF channels with receiving and transmitting functions for AIS, ASM, VDE and DSC. Finally, through actual processing and testing, the test results are precisely consistent with the preset values. At the same time, this RF front-end is assembly tested in whole machine, and the test results show that the receiving dynamic range is more than 110 dB, the receiving sensitivity is less than -117 dBm of AIS, and the adjacent channel selectivity is more than 70 dB, which proves that the RF front-end design method is effective.
Key words : VDES,；AIS；wide dynamic,；high sensitivity,；RF front-end
