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文章主要介绍了一种实现高速短波差分跳频的方案。此方案是采用DSP和DDS来实现的。文中讨论了方案的技术关键、高速差分跳频的硬件结构和软件设计。 相似文献
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基于16号数据链和VHF数据链,研究多教据链互连互操作模型.通过利用OPNET仿真工具,在Link16仿真平台上开发网关节点交换模型和VHF数据链终端节点模型和进程模型,实现VHF数据链网络接入、时隙分配管理、业务产生等.通过相关网络仿真属性配置并进行仿真分析,优化网络设计. 相似文献
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CDMA系统是一个全网同步的系统,扩频码的速率高,在用于无源探测时将具有更好的性能。对CDMA移动通信信号的特点进行了分析,提出了采用导频信道进行无源探测的方案,推导了导频信号的表达式,仿真分析了该信号的探测性能。结果表明该信号具有良好的距离和速度探测能力,能够用于无源探测。 相似文献
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A novel interoperability test sequences optimization scheme is proposed in which the genetic algorithm (GA) is used to obtain the minimal-length interoperability test sequences. During our work, the basic interoperability test sequences are generated based on the minimal-complete-coverage criterion, which removes the redundancy from conformance test sequences. Then interoperability sequences minimization problem can be considered as an instance of the set covering problem, and the GA is applied to remove redundancy in interoperability transitions. The results show that compared to conventional algorithm, the proposed algorithm is more practical to avoid the state space explosion problem, for it can reduce the length of the test sequences and maintain the same transition coverage. 相似文献
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A novel optimal image watermarking scheme is proposed in which the genetic algorithm (GA) is employed to obtain the improvement of algorithm performance. Arnold transform is utilized to obtain the scrambled watermark, and then the embedding and extractio 相似文献
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基于PIC的无线数据传输发射机设计 总被引:3,自引:0,他引:3
以PIC单片机和CC1000为核心器件,设计并实现无线数据传输发射机;介绍PIC16C73芯片和CC1000芯片的性能,详细讨论发射机的硬件和软件系统设计并予以实现。 相似文献