数字波形合成，波形反馈技术，电源失真度低。
Digital wave synthesis, wave feedback technology, low power distortion.
论述了高精度数字波形发生器的结构、工作原理。
The article introduces the structure and working principle of high precision digital waveform generator in detail.
介绍了一种基于直接数字波形合成技术的通用雷达回波模拟器。
In this paper, one general radar echo simulator based on DDWS technology is introduced.
采用程控数字波形合成技术，通过单片微型计算机系统实现了工频标准信号源。
The design method of normal frequency standard signal source, which utilizes program control digital wave synthesis technology and achieved by microcontroller was given.
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。
Based on the digital waveform records of Kunming and Tengchong stations, the triggering feature of the two large earthquakes is analyzed.
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。
Bring forward one DDS-based two-RAM two-channel digital waveform generator which use CPLD technology to improve system's integration.
这些理论，对于设计满足一定信噪比要求的数字波形合成器及对其性能的分析具有指导意义。
These theories provide a guide for designing and analyzing digitally synthesized signals with a specified SNR requirement.
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。
Digital waveform generator which use DDS (Direct Digital Synthesize) technology has many merits like high frequency resolution, good stability and easy to generate signal.
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。
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.
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。
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.
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。
The TCDL is a Ku-band digital data link that delivers wide-bandwidth communications using common data link, or CDL, waveform standards.
另外，由于具有数字化软件性能，信号处理由一个可编程计算机完成，AMFJTRS系统可以与传统的无线电、波形和系统相结合。
Plus, since the capability is defined digitally in software and signal processing is handled by a programmable computer, AMF JTRS can interface with legacy radios, waveforms and systems.
设计数字滤波器并利用传统的心电分析算法来标定心电波形的特征点。
Designing digital filter and demarcating the feature points of ECG wave with the traditional ECG analysis algorithm.
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。
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.
因此，对宽带雷达波形数字产生技术的研究具有重要的现实意义。
So, it has great practical value to research the methods of wideband signals generation by digital technology.
这些新技术包括地震波形数字化的过采样技术，数据传输中使用的紧缩频谱调制技术和差错控制技术等。
The new techniques include oversampling technique in digitalization of seismic wave form, spectrum contraction technique in data - transmitting and error-controlling and so on.
本文介绍了一种采用通用的磁偏转crt显示器并以光栅扫描方式显示四道波形的数字存贮示波器。
This paper introduces a digital storage oscilloscope, which can display four channel waveforms on an ordinary magnetic deflection CRT monitor by means of interlaced raster scanning.
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 digital comparator designed with FPGA generates several PWM current waveform synchronously, to realize the step angles even division control for four-phase stepping motor.
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；
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.
用数字存储示波器采集发动机转速传感器、喷油器波形，并且运用计算机软件进行分析处理。
The waveforms of engine speed sensor and oil injector are collected by digital storage oscillograph and analysed and handled by computer software.
介绍了基于直接数字频率合成技术的双通道任意波形信号发生器。
The double channel arbitrary wave generator based on direct digital frequency synthesis is introduced.
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。
Thus, further researches on digital waveform generation are of much importance recently.
IJF编码是将数字基带信号变换成无符号间干扰和抖动的基带波形信号。
IJF coding refers to converting digital baseband signal into Intersymbol Interference and Jitter Free baseband signal.
最终实现频率、相位、复合波形皆可调节的直接数字合成的信号发生器。
The DDS signal generator which can adjust signal phase, signal frequency and complex wave is designed.
峰值检测是数字存储示波器(DSO)波形显示的一种重要方式。
Peak detecting is an important method for waveform display in DSO.
与传统的模拟示波器相比，数字存储示波器具有能够显示非周期波形、存储波形、携带方便等优势，其应用日益广泛。
Comparing to traditional simulation oscillograph, digital memory oscillograph has the superiority that is able to display non-cycle waveforms, memory waveforms and be easy to carry about.
从两方面论述数字编码波形在长线上传输的影响因素及其改善措施。
The influences on digital coded wave transmitting on long wire and the improved techniques are discussed on two sides.
采用直接数字频率合成(DDS)技术，实现波形发生器。
It also presents the realization of wave form generation with DDS technology.
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。
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。
This paper discusses the technique of waveform coding for digital modulation and presents the idea of waveform coding based on biorthogonal wavelets.
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