METHOD FOR GENERATING FREQUENCY HOPPING SEQUENCE BY USING CONNECTED CODE, AND RADIO EQUIPMENT/RADIO COMMUNICATION SYSTEM FOR THE METHOD

摘要

PROBLEM TO BE SOLVED: To generate a frequency hopping sequence causing continuous changes between carrier frequencies by connecting sequences in accordance with the generation order of the elements of a pseudo-random sequence. ;SOLUTION: A correction Lempel-Greenberger code is used and the elements of a pseudo random sequence are calculated. All possible sequences where a plurality of frequencies appear once are formed. All the sequences where the respective frequencies appear once in any sequence are calculated. The sequences which are previously calculated are connected and a frequency hopping sequence is generated. First output is taken out from a fifteenth shift register element b_n14, second output from the last element B_n16 and third output from the eighth element b_n7, for example. The respective output values constitute the input vector of the Lempel-Greenberger code and the different sequence is generated by using connection.;COPYRIGHT: (C)1999,JPO