- 数字综合
- digital: adj. 1.手指的；指状的。 2.数字的，数据的。 n ...
- synthesis: n. (pl. -ses ) 综合，【化学】合成；【逻辑 ...
- synthesis digital: 数字合成
- dds direct digital synthesis: 直接数字合成
- direct digital frequency synthesis: 直接式数字频率合成
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digital synthesis中文什么意思
- 数字综合
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例句与用法
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- Second , this dissertation focuses on the error analysis of digital method of the pulse compression signal generation based on lfm signals . the difference and similarity between technique of the direct reading of the stored digital waveform and technique of the direct digital synthesis were also compared
?第二部分以lfm脉压信号为基础，围绕数字脉压波形产生系统的误差分析展开，对波形存储直读法和直接数字合成法两种数字波形产生技术进行全面的分析对比。 - At last we introduce the realization of all the parts , the problem in the circuit design and the measured data . the results show that the designed system has met the requirement . in this dissertation , direct digital synthesis technology has been used in the phase - locked frequency synthesizer , which can make full use of the characteristics of direct digital synthesis technology such as flexible output wave shape and continuous
本课题将直接数字式合成技术用于锁相频率合成器中,该方法将直接数字合成的特点,如输出波形灵活且相位连续、频率稳定度高、输出频率分辨率高、频率转换速度快、输出相位噪声低、集成度高、功耗低、体积小等与锁相环路的频带宽、工作频率高、频谱质量好等优点有机的结合起来,从而在宽带的条件下实现了比较好的杂散性能和相噪。 - After comparing several analog and digital generation methods of lfm signal , this paper confirms the system scheme as direct digital synthesis plus quadrature modulation . combined with agilent arbitrary waveform generator and phasor signal generator , a generation system is established and a ultra - wideband signal , whose bandwidth is 1ghz and carrier frequency is 4ghz , is generated
通过对几种模拟与数字线性调频信号的产生方法的比较,本文采用了以直接数字波形合成( ddws )加正交调制的系统方案,并结合实际的仪器设备,产生了带宽为1ghz ,载频4ghz的超宽带线性调频信号。 - Therefore , it has been widely used in the domains of communication , radar , navigation , etc . this article focuses on the generating of the function waves which include sine wave , triangle wave and square wave , depict the concepts of dds ( direct digital synthesis ) and surveying frequency on equal precision , analyze the key techniques in the development and present solutions of function generator . author also present the system structures of hardware and software , discuss the performance indexes and consider the possibility of the system . finally , with respect to the problems in debugging and testing process , author do some analyzing and present the practical solutions
本文主要围绕函数发生器输出的正弦、三角和方波三种基本波形的产生这一课题来展开,阐述了其中的直接数字合成( dds ) 、等精度测频等概念;分析了研制函数发生器所需攻克的关键技术,提出了技术解决途径;对方案软件进行编制和系统进行设计、安装调试,实现了课题功能;最后针对调试中出现的问题,进行了较深入的分析,并提出了实际的解决措施。 - Considering the fact that the analog system is not so good as the digital system on the respect of variation of bandwidths and on the respect of switch between different bandwidths . this paper proposes to adopt the dds ( direct digital synthesis ) technique that produces chirp signals of different bandwidths to improve the situation of losing tracks for the ocean satellite altitude indicator in measuring coarse surfaces
现在的雷达基本上采用模拟系统产生线性调频信号，由于模拟系统在带宽变化方面和不同带宽间切换方面不如数字系统，本文采用dds （ directdigitalsynthesis ）技术产生不同带宽的线性调频信号以改善海洋卫星高度计在测量粗糙表面时存在的失锁现象。