RECEIVING APPARATUS AND METHOD OF FREQUENCY HOPPING SPREAD SPECTRU/TIME DIVISION MUTIPLE ACCESS PERFORMING PARTIAL CROSS CORRELATION DURING CYCLIC CODE SHIFT KEYING DEMODULATION

摘要

PURPOSE: An FHSS(Frequency Hopping Spread Spectrum)/TDMA(Time Division Multiple Access) receiving apparatus is provided to reduce interference between symbols due to a frequency delay. CONSTITUTION: An MSK(minimum shift keying) demodulation unit(220) performs MSK demodulation for a frequency dehopped signal. A descrambling unit(230) performs descrambling for the MSK demodulated signal using a PN sequence. A CCSK(Cyclic Code Shift Keying) demodulator(240) demodulates the descrambled signal using a CCSK in a predetermined range. A symbol deinterleaving unit(250) deinterleaves the restored symbol.