Thus, further researches on digital waveform generation are of much importance recently.
因此对雷达波形数字产生技术的深入研究具有非常重要的现实意义。
The article introduces the structure and working principle of high precision digital waveform generator in detail.
论述了高精度数字波形发生器的结构、工作原理。
Bring forward one DDS-based two-RAM two-channel digital waveform generator which use CPLD technology to improve system's integration.
探讨了一种用CPLD实现的基于DDS的双ram双通道数字波形发生器的设计。
Based on the digital waveform records of Kunming and Tengchong stations, the triggering feature of the two large earthquakes is analyzed.
依据腾冲、昆明两个台站的数字波形资料，对这两次巨震的触发特点进行了分析。
A grid searching method with single station for automatic earthquake location, which utilizes 3-component digital waveform records is proposed.
提出了一种利用单个地震台站三分向数字地震波形记录进行单台地震自动定位的网格搜索法。
Digital waveform generator which use DDS (Direct Digital Synthesize) technology has many merits like high frequency resolution, good stability and easy to generate signal.
基于DDS技术的数字波形发生器具有频率分辨率高、稳定性好、可灵活产生多种信号的优点。
Here we bring forward one digital waveform generator based on DDS technology, use CPLD to do hardware design, finish functional and timing synthesize with certain EDA tool's help.
文中设计了一种基于DDS技术的数字波形发生器，并在此基础上采用CPLD技术来进行硬件设计研究，对电路的数字部分进行了分步设计以及功能仿真和波形仿真。
A method for acoustic signal storage and simulation of underwater target is presented in this paper. The techniques of large dynamic pulse gain control and digital waveform storage are applied.
本文提出了一种利用大动态范围脉冲幅度自动增益控制技术和数字波形存储技术，实现水下目标信号存储和目标回波波形模拟的方法。
The TCDL is a Ku-band digital data link that delivers wide-bandwidth communications using common data link, or CDL, waveform standards.
TCDL是一个Ku波段数字数据链，可提供采用通用数据链波形标准的宽带通信。
On the base of hardware approach, to discuss all the theory involve in active detecting sonar system, including the selection of signal waveform, digital signal sampling, digital signal processing.
以硬件为基础，对所涉及到的理论都作论述，包括探测声纳的信号波形选择，数字信号采样、处理原理与方法。
The digital comparator designed with FPGA generates several PWM current waveform synchronously, to realize the step angles even division control for four-phase stepping motor.
并通过FPGA设计的数字比较器，同步产生多路PWM电流波形，实现对四相步进电动机转角进行均匀细分控制。
The power supply adopts D/A mixed control and repetitive control. The digital part realizes the high precise waveform generator and the control based on voltage virtual value.
该电源采用数/模混合控制及重复控制方法，数字部分实现高精度的波形发生器和电压有效值控制；
This paper gives a brief description of the bandwidth characteristic and sampling rate of digital oscilloscope, and analyses their impact on waveform test in practical application.
本文对数字示波器的带宽特性及取样速率进行了简要描述，并分析了其在实际应用中对波形测试的影响。
With the two technologies and the flexible control ability of MCU, a new digital signal source, Arbitrary Waveform Generator (AWG), has been developed.
本设计结合这两项技术，并利用单片机灵活的控制技术，开发了一种新的信号源：任意波形发生器(AWG)。
This paper discusses the technique of waveform coding for digital modulation and presents the idea of waveform coding based on biorthogonal wavelets.
讨论了数字调制技术中的波形成形问题，提出利用双正交子波实现波形成形的思想。
The waveform generator is composed by DSP and quadrature digital upconverter (QDU). DSP is used as main controller to decide the modulation mode and output waveform of QDU.
波形产生器主要由dsp和数字上变频器构成，DS P作为主控制器设定数字上变频器的调制方式和输出波形。
On the basis of the waveform storage method, a digital generation system scheme for ultra wide-band radar LFM pulse compression signals is presented in this paper.
该文基于波形存储直读法，提出了一种超宽带线性调频信号数字产生系统方案。
On the basis of the waveform storage method, a digital generation system scheme for ultra wide-band LFM pulse compression signals is proposed in this paper.
对线性调频（LFM）信号的三种主要数字产生方法进行分析，提出一种基于波形存储直读法的超宽带线性调频脉冲压缩信号数字产生系统方案。
A new type of radar waveform called Linear Contracting waveform is presented. To suppress the sidelobe of such waveform's matched output, a digital filter is adopted.
该文提出了任意信号的时域线性伸缩表达式，给出了一类新的雷达波形，并对这类波形的压缩形式(匹配滤波输出)在时域进行旁瓣抑制数字滤波。
To acquire the waveform of the arc voltage and the arc current in welding, a date collection system and digital filter is designed in this paper. The experimental result shows that it is Satisfied.
文中介绍了一种为获取焊接过程中的电弧电压及电弧电流波形，设计的一套数据采集系统及数字滤波器，通过实际运行证明收到了满意的效果。
The functions of this system software include that it can realize ECG data transceiver, data memory, waveform display and communication management by using servers and Personal Digital Assistant(PDA).
该系统软件功能包括对服务器和个人数码助理（PDA）心电数据的收发、存储、波形显示和通信管理。
The system consists of a digital control system, a PWM control waveform display, a full-bridge converter, a DC motor and load motor.
该系统由数字控制器、脉宽调制波形显示电路、全桥变换器、直流电动机和光电编码器。
After debugging, the system can output perfect waveform and the control is reliable. So, the priority of the digital control is indicated.
系统经脱机联机调试后，输出的波形理想、控制可靠，体现了数字化控制的优越性。
In digital microwave communication mode, the waveform distortions caused by frequency-selective fading are the main cause of the propagation quality deterioration.
在数字微波通信方式中，频率选择性衰落引起的波形失真成为传输质量恶化的主要原因，但没有统一的评价方法。
In this paper basic principles on digital generator of chirp waveform and four realizable schemes of hardware are described.
本文介绍了数字式线性调频波形产生器的基本原理。以及四种硬设备的实现方案。
In order to study the measurement technique of high power electromagnetic pulse, standard gain horn and wideband digital oscilloscope are adopted to measure the electromagnetic pulse waveform.
为研究高功率电磁脉冲的测量技术，提出一种应用标准增益喇叭天线和宽带数字示波器进行电磁脉冲辐射电场测量的方法。
It can be used to measure the peak power of diode laser directly. with the characters of digital display, high accuracy, large power range, wide pulse width and output port of waveform monitor.
它可直接应用于脉冲半导体激光峰值功率测试，并数字显示。具有中间环节少、测量精度高、适用功率范围大、脉宽范围宽，具有波形监测接口等特点。
Three different digital generation methods for wideband radar signal waveform are introduced in the paper.
本文简要地介绍了宽带雷达波形数字式产生的三种实现方案。
This dissertation mainly studies the radar multi-waveform digital pulse compression processing system in frequency domain based on FPGA and multi-DSP.
本文主要研究基于FPGA和多片DSP的雷达多波形频域数字脉冲压缩系统及其软件设计。
This dissertation mainly studies the radar multi-waveform digital pulse compression processing system in frequency domain based on FPGA and multi-DSP.
本文主要研究基于FPGA和多片DSP的雷达多波形频域数字脉冲压缩系统及其软件设计。
应用推荐