A method of generating radar multi-target phase-coherence echo based on DDS is discussed.

1、

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.

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2、

Clear AFM images were ( obtained ) from PbZr _ ( 0.90 ) Ti _ ( 0.10 ) O _ 3-Fe _ ( 0.003 ) nano powder sample prepared by DDS method.

采用DDS法制备PbZr0.90Ti0.10O3-Fe0.003 ( PZT -Fe ) 纳米粉体样品,得到了清晰的AFM图像.

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3、

PLL frequency synthesizer with DDS reference will adapt to local oscillator of modern radio.

采用DDS输出作为参考的PLL频率合成器非常适合用做现代电台的本振.

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4、

Impulse test. This procedure for the AD 9850 ( DDS ) Direct Digital Frequency Synthesizer C language source code.

脉冲发生测试. 此程序为AD9850 ( DDS ) 直接数字频率合成器C语言源码.

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5、

DDS-11 A digital conductivity instrument for laboratory measurements of conductivity of liquids.

DDS-11A型数字电导仪适用于实验室测量液体的电导率.

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6、

The hardware configuration of using DDS chip AD 9956 to realize the linear modulation function is introduced.

介绍了一种基于DDS芯片AD9956实现线性调频功能的硬件实现方法.

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7、

Deposit-dip-spin ( DDS ) coating method, a composite nano-powder sample preparation method for atomic force microscope ( AFM ) measurement is introduced.

介绍了一种改进旋涂法 —— DDS 涂膜法 ( Deposit-Dip-Spin-coating), 主要用来制备纳米粉体原子力显微镜 ( AFM ) 分析样品.

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8、

DDS-1 type m ulti-function electronic laboratory case can meet this requirement.

DDS - 1型多功能电子实验箱即可满足这方面的需要.

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9、

Through the DDS CMOS chip AD 9851 , the system produces a 64 points sampling signal.

通过DDS芯片AD9851来产生相对于输入信号64倍频的高精度采样信号.

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10、

The basic theories of the frequency synthesis , PLL , DDS, DDS + PLL are introduced first in this paper.

本文首先介绍了关于频率合成、锁相环频率合成、DDS频率合成、 DDS+PLL频率合成等的基本理论.

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11、

The transmitterof DHF uses DDS to synthesize frequency.

发射机采用直接数字频率合成器(DDS)生成频率,具有精度高、频率跳变速度快的特点.

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12、

This article describes the design of a linear sweeping frequency signal generator using DDS technology.

本文介绍了利用DDS来产生线性扫频信号的射频信号发生单元的设计.

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13、

Microbiological degradation is an effective and environment-friendly method to eliminate DDT pollution.

微生物降解是一种有效的环境友好型去除DDT污染的手段.

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14、

The house is regularly spraying with DDT.

房屋是定期用DDT喷洒.

《简明英汉词典》

15、

Led to the ban of DDT because of its highly toxic nature.

导致禁用DDT,因为它有很高的毒性.

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16、

The insects can be exterminated by spraying DDT.

可以用喷撒滴滴涕的方法大量杀死这种昆虫.

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17、

DDT sprayed into the air kills mosquitoes and other insect pests.

喷射到空气中的ddt能杀死蚊子和其他有害昆虫.

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18、

The underneath cargo is'stained contaminated the DDT dust.

以下货物被DDT原粉灰尘污染.

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19、

In 1873, the chemical DDT was first synthesized.

1873年, 化学物质滴滴涕(DDT)首次合成.

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20、

They're spraying DDT. to kill the insects.

他们在喷洒滴滴涕杀虫.

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