Non-binary LDPC Codes under Rotor Occlusion in Helicopter Communication
Satellite communication is important in helicopter communication,it can effectively improve the communication range and communication capacity.Controlled by the installation conditions,satellite antenna will be influenced by helicopter rotor periodically,signal transmission will suffer periodic continuous fading and occur periodic burst errors.Non-binary LDPC code is a kind of advanced channel coding scheme,it has strong ability of error correcting.It can convert continuous bit burst errors into less M-ary symbol errors,so it has a good ability to anti burst error.In this paper,simulation of using non-binary LDPC codes to resist the burst errors in the helicopter satellite communication is placed,the results show that non-binary LDPC codes can correct the burst error well which are caused by helicopter rotors.In addition,this paper also discusses a method of decoding initialization in which zero is set in positions under covered,the results demonstrate that the way to set zero can obtain better decoding performance advantages,the performance improvement is about 0.2dB.
helicopter satellite communication rotor occlusion non-binary LDPC codes
ZHANG Fu-xing XU Sheng-wang
Beijing Institute of Tracking and Telecommunication Technology Beijing, 100094, China
国际会议
秦皇岛
英文
204-208
2015-09-18（万方平台首次上网日期，不代表论文的发表时间）