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- By the example of the digital frequency counter design on FPGA, this paper introduces the design of SOC(System On Chip) based on FPGA/CPLD. 通过例举基于FPGA的数字频率计的设计,阐述了如何利用FPGA/CPLD实现片上系统。
- Precision Improvement of Digital Frequency Counter with Match Strobe Signal 用选通门匹配方法提高计数式频率计的测量精度
- A Multiple Implementation of Digital Frequency Counter in Teaching of Comprehensive Electronic Design 数字频率计在综合设计实验教学中的多方案实现
- digital frequency counter 数字式频率计
- The digital frequency meter produces the electriccircuit, a survey control electric circuit, a counter, a latch and thepower circuit by a 1 second pulse is composed. 数字频率计由一个1秒钟脉冲产生电路、一个测量控制电路、一个计数器、一个锁存器和电源电路组成。
- The hardware ismainly com posed by 8031,A/D,and frequency counter,and the software is simple and efficient . 硬件主要以8031单片机为核心构成一个最简系统，软件简短有效。
- Adopt multi-function digital frequency inverter, and stepless variable speed. 采用多功能数显变频器，无级变速；
- This digital frequency stablization unit was basedon DSP combined with EPLD . 采用DSP芯片结合EPLD技术实现数字稳定技术。
- A new method LFM in direct digital frequency synthesizing ( DDS) based on CORDIC algorithm is introduced in this paper. 本文介绍了一种应用CORDIC算法的线性调频直接数字合成(DDS)的实现方法。
- Full-automatic box folding-gluing machine features stable performance, simple operation, and adopts control by imported variable frequency counter, to achieve stable, accurate and quick production. 全自动糊盒机系列具有性能稳定，操作简单，采用进口变频计数控制，达到稳、准、快的目的。
- Direct Digital Frequency Synthesis(DDS) technique is introduced and its spurious error is mainly studied. 介绍了直接数字频率合成技术以及分析其杂散误差,对相位截断误差和幅度量化误差进行了傅立叶级数分析研究。
- A Quadrature Direct Digital Frequency Synthesizer (QDDS) based on CORDIC algorithm is presented. 设计了一种基于CORDIC算法的正交输出直接数学频率合成器(QDDS);并在ALTERA FLEX10K 系列FPGA上予以实现.
- Explored the design of the mouthpiece for AES/EBU With digital frequency modulator system. 与相似的文献。
- A realization technique of high speed arbitrary wave generator based on dual DDS(direct digital frequency synthesizer) is presented. 提出了一种基于双DDS(Direct Digital Frequency Synthesizer)的高速任意波发生器实现技术。
- In a transmit-receive sharing digital frequency synthesizer, how fast speed we identify whether frequency is aimed at, this is a key subject in ECM. 在收发共用的数字式频率综合器中;如何快速判别频率是否瞄准;也就成为电子对抗战中的一个关键课题.
- The technology of direct digital frequency synthesis(DDS),is a new typed synthesizer technology and signal frequency methods. 直接数字频率合成技术,即DDS,是一种新型的频率合成技术和信号产生方法。
- Direct Digital Frequency Synthesis(DDS) technology is realized on complex programmable logical component(CPLD) with hardware description language. 在复杂可编程逻辑器件(CPLD)上,用硬件语言实现了直接数字频率合成(DDS)技术。
- Shenzhen astar technology Co., LTD is located in guangdong shenzhen futian district, main digital frequency head, module, STB, gain antenna etc. 深圳爱仕达科技有限公司位于广东深圳市福田区，主营数字高频头、模组、机顶盒、增益天线等。
- The paper introduced the working principle of the direct digital frequency synthesizer(DDS) and its spurious analysis is performed. 文章介绍了直接数字频率合成器(DDS)的基本工作原理,同时对其杂散进行了分析。
- Phase noise is the key character in direct digital frequency synthesizers (DDS) applied in the high stable frequency source. 摘要相位噪声是制约DDS用于高稳定频率源的的关键指标。
