Assume that you have a DDS-created keyed physical file and only want the index on SSD and not the data.
假设您有一个DDS创建的键控物理文件，并且只希望在SSD中保存索引而不是数据。
This includes both DDS-created files and SQL indexes as well as physical files with a Primary Key constraint.
这包括DDS创建的文件和SQL索引，以及带有PrimaryKey约束的物理文件。
Media preference could be controlled at the partition (member level) for SQL partitioned tables, but the same was not possible for DDS-created physical files with multiple members.
对于已分区的sql表来说，媒介首选项可以在分区(成员)级别进行控制，但是对于具有多个成员的DDS创建的物理文件则无法实现这一点。
Designing and deploying DDS applications.
设计和部署DDS程序。
Provides a new Screen Designer for visual design of DDS display files and a new Report Designer for visual design of DDS printer files.
为DDS显示文件的可视化设计提供了一个新的界面设计器，并为DDS打印机文件的可视化设计提供了一个报告设计器。
The paper presents the realization method of acoustic simulator for SL-6000 logging system acoustic instruments based on the DDS technique.
本文提出了基于DDS技术的针对SL-6000型测井系统声波井下仪的声波模拟器的实现方案。
This paper introduces the theory of the phase-locked loop (PLL) and the direct digital synthesis (DDS), a method to improve the precision of DDS and reduce its phase truncation error is also given.
介绍了锁相环(PLL)技术和直接数字式频率合成(DDS)技术的基本工作原理，给出了一种提高DDS输出频率精度及减小其相位截断误差的方法。
This system could include the PC software, LXI interface circuit, control module, multi-channel DDS system, and the Adder module.
该方案的系统组成包括PC机软件、LXI接口电路、控制模块、多通道dds系统和加法器。
This DDS program-controlled sine signal generator system is based upon computer's serial interface.
本dds程控正弦信号发生器系统基于计算机串行接口。
Multiple indexes may be created for a DDS-created join logical file.
可以为DDS创建的连接逻辑文件创建多个索引。
Report Designer is a new component that you can use to graphically design and modify the content of DDS printer files.
您可以用报告设计器来图像化地设计和编辑DDS打印机文件的内容。
The data Description Specification (DDS) was used for database files, IBM 5250 screen layouts and reports.
DataDescriptionSpecification (DDS)被用在数据库文件，IBM 5250屏幕设计以及报告中。
The DDS can be applied widely to the synthesizer of radar, specially in the phased array radar.
DDS在雷达频率合成器，尤其是在相控阵雷达中，有广阔的应用前景。
Meanwhile, according to the measured value, RF can be searched and tracked by DDS controlled by software.
同时，根据测频的量值，由软件控制DDS完成对射频脉冲的搜索、跟踪。
DDS is digital synthesizer technique.
DDS是一种数字合成技术。
DDS technology can switch frequency fastly in phase continuous.
应用dds技术可实现相位连续的快速频率切换。
DDS is an advanced technique on frequency synthesis, whose primary advantages are controlling facility, continuous phase and fine frequency resolution.
DDS技术是一种先进的频率合成技术，其主要优点是易于程控，相位连续，输出频率稳定度高，分辨率高。
This system consists of DDS signal generator module, MCU control module, keyboard input module and nixie tube display module.
本文所设计的正弦信号发生器主要由DDS波形产生模块、单片机控制模块、键盘输入模块和数码管显示模块组成。
Direct digital synthesis (DDS) is an advanced all digital frequency synthesis technology, based on the PM function of DDS, this paper gives the design scheme of a DDS digital phase shifter.
直接数字式频率合成技术(DDS)是一种先进的全数字频率合成技术，本文基于DDS的相位调制功能，给出了一种DDS数字移相器的设计方案。
This article introduces the algorithm of DDS and the principle of hardware design in detail and gives out the circuit diagram, the principle of software design and the flow chart.
详细介绍了DDS算法和硬件设计原理，给出了电路原理图，软件设计原理及流程图。
Direct digital synthesis (DDS) is an all digital frequency synthesis technique. Because of its special theory and construction, it has many kinds of modulation capability.
直接数字式频率合成(DDS)技术是一种全数字频率合成技术，其特殊的原理和结构使它具有多种调制能力。
This paper introduces the application of direct digital synthesizers (DDS) technique in laser phase distance measurement.
本文介绍了直接数字合成（DDS）技术在激光相位测距仪中的应用。
A complex structure signal simulator designed by DDS technique is introduced. It can simulate several kinds of strata echo waves or complex structure signals.
介绍了一种利用DDS技术设计的复杂结构信号模拟器，它可以模拟多种地层回声或复杂结构的信号。
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。
Then, the specific frequency properties of DDS output signals and their effect on FH signals are carefully analyzed.
接着，分析了DDS输出信号的频谱特性以及这些特性对跳频信号的影响。
Direct Digital Synthesizer (DDS) has the advantages of high frequency resolution, rapid frequency change rate and low phase noise.
直接数字频率合成器dds具有极高的分辨率、频率转换速度快、相位噪声低等优点。
The DDS signal generator which can adjust signal phase, signal frequency and complex wave is designed.
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。
DDS and digital phrase-lock technology have been applied in FPGA to improve the accuracy of frequency tracking.
采用高精度的直接数字频率合成（DDS）和数字锁相环技术，实现了高频率跟踪精度。
DDS and digital phrase-lock technology have been applied in FPGA to improve the accuracy of frequency tracking.
采用高精度的直接数字频率合成（DDS）和数字锁相环技术，实现了高频率跟踪精度。
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