您要查找的是不是:
- The Realization of the Precise Frequency Sweep Signal Source 高精确度扫频信号源的实现
- frequency sweep signal source 扫频信号源
- At last, several plans of sweep signal source with DDS and PLL together are discussed, based on one of them, the L-band sweep signal source is designed successfully. 最后,分析DDS和PLL相结合的扫频源的方案,利用其中的一种方案设计出L波段的扫频源。
- Digital Realization Method of Frequency Sweep Signal 频率扫描信号的一种数字实现方法
- The direct digital synthesizing frequency sweep signal system based on the technique of ISP 基于ISP技术的数字频率扫描信号发生系统
- frequency sweeping signal generator 扫频信号发生器
- Design on Swept Signal Source Based on DDS Chip 基于DDS芯片的扫频信号源的设计
- video frequency sweep signal 视频扫频信号
- Simple Signal Source based Micro Controller. 单片机简易信号源。短句来源。
- Compensation of Sweeping Nonlinearity in Millimeter Wave Synthesized Frequency Sweeping Signal Generators 毫米波合成扫源中扫频非线性补偿技术
- This paper discusses several problems caused by the production of ths rapldfreguency sweep signal and the pseudo--random signal in SBC TB--801B by ourown designed computer programs, Using SBC as a multifunctional excitation sig--nal source. 本文探讨了应用单板机作为多功能的激励信号源,自编计算机程序,在TP-801B单板机上实现快速正弦扫频信号和伪随机信号输出时,应解决的几个问题。
- LFM is one of widely used methods of ISAR.Nonlinearity in frequency sweep has some effects on the quality of imaging. 摘要线性调频法是逆合成孔径雷达(ISAR)成像中一种常用的方法,在该方法中扫频非线性对成像质量有一定的影响。
- The technology of direct digital synthesis is applied to realize signal source with the frequency range from 1Hz~5MHz, and the minimum frequency absolution to 0.2Hz. 信号源采用直接数字合成原理实现;频率范围从1Hz-5MHz;最小分辨率为0.;2Hz。 高速数据采集使用12位A/D转换器;最高采样频率40MHz。
- Time clock signal source directly fetches from clock signal of PCI bus in the computer system or signal generator, which can generates high frequency time clock signal. 该时钟信号源直接取自于该电脑系统中PCI总线的时钟信号或是一可产生高频时钟信号的时钟信号产生器,用以供应该计数电路所需的输入时钟信号。
- The corresponding frequency of the key parts of the poplar particle presswood pallet at maximal transmissibility was determined by frequency sweep test. 摘要采用扫频试验得出振动台对托盘关键部位最大传递率所对应的频率。
- Power amplifier module amplifiers the sweep signal, driving the vibroseis push-and-pull the ground and forming elastic waves. 该电路采用准互补对称推挽电路,构成甲乙类放大,引入了多级反馈保证整个信号通道能非常稳定可靠地工作,并充分考虑了散热问题和保护电路的设计。
- The single-chip function generator ICL8038 can get synchronous sine wave of constant amplitude in PLL as voltage control oscillation(VCO), which is a basic signal source of static frequency converter. 单片函数发生器ICL8038在PLL中作为压控振荡器(VCO)产生同步等幅正弦波,可作为静止变频器的基准信号源。
- Sweep signal of vibroseis is critical for seismic data quality when using vibroseis in seismic exploration, so it is very important to design out rational sweep signal. 在使用可控震源施工时,可控震源扫描信号设计的是否合理是决定地震数据采集质量的关键。
- It can analyze DPG signal, self-defined sweep signal, test of seismic channel data and geophone polarity by use of DSD returned signal through wire and wireless style. 它可对DPG信号、自定义扫描信号、地震道数据及检波器极性测试、通过有线或无线方式由DSD返回的信号进行分析。
- Design criteria for such signal source are derived, upon which one can choose the PLL loop bandwidth by trade-off considerations, to get a relatively low BER, simultaneously obtain low spurious output and fast frequency hopping as well. 为了减小相噪对系统性能的影响,导出了此类信号源的设计判据,据此可基于折衷考虑选取环路带宽,以便同时获得较低的误码率,以及低的寄生输出和较快的频率跳变速度。