微波超视距通信信道特性分析与系统设计
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摘要
针对微波中继通信单跳通信距离近、后勤保障困难、机动性差及难以适应复杂地形等缺点,通过分析微波超视距信道特性,提出微波超视距传输的设计思路。基于对微波超视距链路预计公式的推导,为系统设计提供基础和保障。通过对信道类型的分析,提出针对瑞利信道的抗衰落技术措施,进行仿真和分析。最后给出了一个工程实例,理论及实践的一致性结果,证明了其应用效果。
Aimed at the problems of microwave relay communication system such as the short communication distance,more difficult maintenance,poor mobility and environmental adaptability,etc.,this paper puts forward a design method of microwave BLOS transmission based on analyzing channel characteristics of microwave BLOS communication. On the basis of prediction formulas derivation of microwave BLOS link,a theoretical basis is provided to the design of transmission system. By analyzing the channel type,the anti-fading technology is put forward and simulated for rayleigh channel. At last,an engineering example is given,and the consistency of theoretical analysis and practice results show that this design is available.
Aimed at the problems of microwave relay communication system such as the short communication distance,more difficult maintenance,poor mobility and environmental adaptability,etc.,this paper puts forward a design method of microwave BLOS transmission based on analyzing channel characteristics of microwave BLOS communication. On the basis of prediction formulas derivation of microwave BLOS link,a theoretical basis is provided to the design of transmission system. By analyzing the channel type,the anti-fading technology is put forward and simulated for rayleigh channel. At last,an engineering example is given,and the consistency of theoretical analysis and practice results show that this design is available.
引文
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[13]王新龙.对流层散射通信调制信号形式研究[J]无线电通信技术,2002,28(3):1-2.
[14]赵彬,王光辉,刘树钢,等.对流层散射通信信号形式的研究[J].河北北方学院学报(自然科学版),2013,29(5):19-22.
[15]高自新,吴新华,吴慧.大容量散射调制解调技术研究[J].无线电工程,2008,38(6):61-64.
[16]沈斌松,李志勇.中等速率散射传输波形优化设计[J].无线电工程,2015,45(3):77-80.
[17]韩明钥,徐松毅,贾伟.LDPC码在对流层散射通信中的性能分析[J].无线电通信技术,2008,34(4):16-18.
[18]李正伟,冯锦瑞,曾超.数字对流层散射通信链路传播可靠度工程计算[J].无线通信技术,2010,36(5):42-44.
[2]张云峰.多频段点对点数字微波通信中继站的研究[D].大连:大连海事大学,2004.
[3]张明高.对流层散射传播[M].北京:电子工业出版社,2004.
[4]总参通信部.对流层散射远距离通信[M].北京:战士出版社,1982.
[5]张建忠,董银虎,吴慧杰.大容量远距离微波接力链路分析与设计[J].无线电工程,2012,42(10):38-42.
[6]康欣,曹仲晴.对流层散射超视距通信传播信道分析[J].无线电通信技术,2015,41(2):35-37.
[7]刘利强,宋志群,陈大勇.山区通信中单刃峰绕射损耗的工程化近似模型[J].无线电通信技术,2015,41(1):24-27.
[8]赵玉超,秦建存,刘丽哲.对流层散射通信传输损耗预计方法分析[J].无线电工程,2013,43(3):62-64.
[9]赵玉超,孙泽楠.散射通信系统工作频段的选择[J].无线电通信技术,2015,41(5):90-92.
[10]尹成友,林世山,许尤福.利用对流层散射实现对雷达信号超视距侦察的体制研究[J].电子信息对抗技术,2003,18(6):3-9.
[11]徐松毅,陈常嘉,李文铎.高仰角对流层散射电波传输损耗的一种预计方法[J].电波科学学报,2011,26(3):528-532.
[12]宋雪梅,朱旭东.对流层散射实现雷达信号超视距传输的研究[J].现代雷达,2011,33(7):9-12.
[13]王新龙.对流层散射通信调制信号形式研究[J]无线电通信技术,2002,28(3):1-2.
[14]赵彬,王光辉,刘树钢,等.对流层散射通信信号形式的研究[J].河北北方学院学报(自然科学版),2013,29(5):19-22.
[15]高自新,吴新华,吴慧.大容量散射调制解调技术研究[J].无线电工程,2008,38(6):61-64.
[16]沈斌松,李志勇.中等速率散射传输波形优化设计[J].无线电工程,2015,45(3):77-80.
[17]韩明钥,徐松毅,贾伟.LDPC码在对流层散射通信中的性能分析[J].无线电通信技术,2008,34(4):16-18.
[18]李正伟,冯锦瑞,曾超.数字对流层散射通信链路传播可靠度工程计算[J].无线通信技术,2010,36(5):42-44.