1) DDS
数字频率合成器
1.
Research on The Method of DDS s Precision;
直接数字频率合成器(DDS)精度提高方法研究
2.
Principle and composition of the DDS are introduced,and the DDS system based on FLEX10K device is realized by Verilog language.
介绍了直接数字频率合成器的组成及工作原理。
3.
The principle and the composition of the DDS are introduced and the DDS System based on the FLEX10K device is realized utilizing HDL language.
介绍了直接数字频率合成器的组成及工作原理,采用硬件描述语言,运用Altera公司的FLEX10K系列器件设计了该系统,并通过QuartusⅡ与MATLAB软件对设计进行了联合仿真,验证了设计的正确性。
2) digital frequency synthesizer
数字频率合成器
1.
Wide-band digital frequency synthesizer in UHF is a primary equipment of ground digital TV and broadcasting covering network: the main unit of digital TV exciter and transponder.
频率合成器在现代电子系统中应用日益广泛,UHF(超高频)宽带数字频率合成器是地面数字电视广播覆盖网的重要设备——数字电视激励器和转发器中的主要组成单元。
2.
A digital frequency synthesizer without ROM look up table is presented,a piecewise linear interpolation scheme is used to approximate a sinusoid function.
直接数字频率合成器的整个数字部分由Altera FPGA实现。
4) DDS
直接数字频率合成器
1.
The Design and Control of Scouting Receiver Based On DDS
基于直接数字频率合成器的侦察接收机的设计和控制
2.
The principle of electrical measuring for quartz were analysed by the method of π network based on ISA bus, a way to use direct digital synthesizer(DDS) as stimulate source and shows the structure of the computer measurement system were provided.
分析了基于ISA总线接口的π网络法石英晶片电参数测量原理、石英晶片的等效电路和使用π网络法测量石英晶片电参数的基本原理,提出了一种使用直接数字频率合成器(DDS)作为激励信号源的方法和以此为基础实现石英晶片电参数计算机测量系统结构的途径;使用VisualC++6。
3.
In paper,the method of how to use DDS (Direct Digital Synthesizer) and the interface circuit between DDS and DSP are introduced.
文中对准直发射系统、聚焦接收系统的设计进行了详细分析并提出工作距离的概念和设计要求,与此同时对直接数字频率合成器(DDS)的使用以及DDS与数字信号处理器(DSP)之间的接口设计进行了介绍。
5) direct digital synthesizer(DDS)
直接数字频率合成器
1.
This paper provides a new method to control high performance direct digital synthesizer(DDS) chip AD9858 through Nios Ⅱ CPU soft nucleus(manufactured by Altera company) embedded in a field programmable gate array(FPGA) chip.
提出将Altera公司的NiosⅡ软核嵌入到FPGA芯片内部来控制高性能直接数字频率合成器芯片AD9858的方法,在简要介绍NiosⅡ和AD9858的特性的基础上,详细说明了本系统的电路结构和软件设计方法,提出一种新的雷达信号源的设计方法,该系统具有集成度高、稳定性好和扩展性强等优点。
6) direct digital frequency synthesizer
直接数字频率合成器
1.
Analysis of the performance of direct digital frequency synthesizer;
直接数字频率合成器频谱性能分析
2.
Applications of direct digital frequency synthesizer AD9954 in frequency hopping communication system;
直接数字频率合成器AD9954在跳频通信系统中的应用研究
3.
Design of Direct Digital Frequency Synthesizer;
直接数字频率合成器的设计
补充资料：变换器式频率表(见交换器式电表)
变换器式频率表(见交换器式电表)
transducer type frequency meter
曰‘口，”IuullqISn}P旧iUbloo变换器式颇率表meter)(transdueer tyPe见变换器式电表。frequeney
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条