临近空间高动态高速载波捕获跟踪的实现方法
Implementation of Carrier Acquisition and Track in HDHI Situation in Near Space
作者：管明祥(深圳信息职业技术学院 电子通信技术系，广东 深圳 518029;哈尔滨工业大学 电子与信息技术研究院，黑龙江 哈尔滨 150001)；郭庆(哈尔滨工业大学 电子与信息技术研究院，黑龙江 哈尔滨 150001)；仲伟志(哈尔滨工业大学 电子与信息技术研究院，黑龙江 哈尔滨 150001)
Author：(Dept. of Electronic Communication Technol., Shenzhen Inst. of Info. Technol., Shenzhen 518029,China;School of Electronic and Info. Technol., Harbin Inst. of Technol.,Harbin 15001,China)；(School of Electronic and Info. Technol., Harbin Inst. of Technol.,Harbin 15001,China)；(School of Electronic and Info. Technol., Harbin Inst. of Technol.,Harbin 15001,China)
收稿日期： 年卷（期）页码：2009,41(5):227-231
期刊名称：工程科学与技术
Journal Name：Advanced Engineering Sciences
关键字：临近空间; 高动态高信息速率; 捕获；跟踪; 载波
Key words：near space; high dynamic and high information rate; acquisition; track; carrier
基金项目：国家自然科学基金资助项目(60532030)；深圳信息职业技术学院第2批博士创新资助项目[
中文摘要
为了接收临近空间高动态高信息速率用户信号，需要设计载波链路的捕获与跟踪系统。根据临近空间网络高动态高信息速率的链路特性，着重分析了HDHI（HDHI，high dynamic and high information rate）载波链路捕获跟踪的特性及实现方案。对载波链路捕获跟踪的设计原理做了清晰的说明和推导，提出了适合HDHI载波链路捕获跟踪设计方法，并对高动态高信息环境中接收机的载波捕获与跟踪数字系统的设计做了详细的陈述。最后通过实验和对比论证了利用DQPSK方式的HDHI信号捕获跟踪设计方法是可行的。
英文摘要
To receive high dynamic and information rate user signal in near space, it is necessary to design carrier acquisition and track system. According to the high dynamic and information rate characteristics of wireless link in near space, the performance and implement scheme of carrier acquisition and track were analyzed. The design principle of carrier acquisition and track under high dynamic and information rate situation was explained and deduced clearly. A new suitable method was proposed for high dynamic and information rate wireless link.The design method of digital receiver system was described in detail under high dynamic and information rate situation.The results of experiment and comparison showed that the design method of carrier acquisition deriving from DQPSK under high dynamic and high information rate situation was available.
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