Overlap frequency spectrum eightfold diversity scatter communication device

The utility model discloses an eightfold diversity scatter communication device of an overlap frequency spectrum, which relates to scatter communication appliances of scatter communication systems with large and medium capacity in the technical field of communication. The utility model is composed of a modulator, a transmitter circuit, a receiver circuit, a demodulator, antennae, a power supply and other components. The utility model uses the QPSK modulator for generating half cosine signals with a variable duty ratio so that a multipath guard space with an adjustable width is reserved in each code element; thereby, in-band two frequency overlap eightfold diversity signal forms are realized, and the scatter communication of an overlap frequency spectrum is realized through just a modem, the transmitter circuit, the receiver circuit and the two antennae. The utility model has the advantages of strong capability of channel fading resistance, simplified appliance structure, economical and reduced cost and obviously enhanced reliability. The utility model is especially suitable for vehicle or box type scatter communication devices with large and medium capacity.