Hop Spread Spectrum Communication System With The Design,

The aim of this paper is to design the baseband circuit of a DS/FH system. The transmit circuit includes convolutional encoding, framing, differential encoding, shaping filter, PN generator, hopping pattern generator, etc. The main part of receive circuit is matched filter. First relative theory is introduced. Second practical circuit design is described. At last the VHDL code and simulation results are appended.