并介绍了基于正交采样的DPD技术。
And introduce the DPD technology based on orthogonal sampling.
提出了一种在基带采样率内对任意带通信号的正交采样技术。
A new quadrature sampling technique for arbitrary bandpass signal within baseband sampling rate is presented.
研究用一种中频采样和数字信号正交变换理论实现脉冲多普勒雷达信号正交采样的新技术。
The non-ideal characteristic of intermediate frequency signal is unfavorable for band-pass sampling and affects the performance of quadrature transform.
在ADSP TS101上，验证了这个算法实现数字正交采样和脉冲压缩的速度性能和精度。
The speed and accuracy of digital quadrature sampling and pulse compression is also verified based on ADSP-TS101 .
正交采样技术可以保留信号复包络的幅度、相位等信息，因此在信号处理领域中有着广泛的应用。
Quadrature sampling technique is widely used in the field of signal processing since it can reserve all information about the complex envelope of IF signal.
在高数据采样率，特别是大时宽带宽积条件下，时域的数字正交采样和脉冲压缩包含大量的乘加运算。
The computation burden of the quadrature sampling and pulse compression is huge when the data rate is high and the time bandwidth product is not small.
在数字正交采样中，带通信号存在频谱迁移问题，虽然满足带通信号的采样定理，仍可能产生频谱混叠。
For bandpass signal under digital quadrature sampling, there is spectrum shifting. Although the sampling frequency satisfies the sampling theorem, it may cause spectrum aliasing.
随后，详细讨论了高速数据采集系统中抖动对数据采集系统信噪比的影响和偏移对正交采样一致性所产生的影响。
Then, we discuss jitter 's influence on Signal-to-Noise Ratio of data acquisition system and skew' s influence on consistency of orthogonal sampling of high speed acquisition system in detail.
雷达数字化接收机的理论基础是采样理论、信号正交变换、多速率信号处理以及高效的数字信号处理算法。
The theoretic of radar digital receiver are sampling, signal orthogonal transform, multirate digital signal processing, DSP algorithm with high efficiency, etc.
然后介绍了数字化中频处理中的采样理论、正交混频解调、滤波抽取等基础理论。
The basic theory of IF signal processing, such as sample theory, quartered demodulating technology, filtering, draw-off and interpolating theory is discussed.
中频采样是数字正交鉴相系统中的一项关键技术，具有锐截止特性的中频采样滤波器可以改善鉴相系统的性能。
As a key technology in digital quadrature demodulation system, the direct IF sampling filter with sharp cutting-off transition band can improve the performance of demodulation system.
在数字正交调制原理的基础上，宽带信号的产生问题实际上转换为如何得到高采样率下的时域基带信号。
Based on the principle of digital orthogonal modulation, the generation question of wide-band signal is factually identical with how to generate base-band signal with high sampling in time domain.
为满足高性能信号处理技术要求，需要直接对中频信号进行采样来得到正交双路信号。
To satisfy the requirement of high performance signal processing technique, it is demanded to use the direct sampling of IF signal to get quadrature signals.
系统采用数控衰减、高线性度中放和I、Q正交双通道，具有较高的采样率和较宽的测量波门。
The system has digital control attenuator, high linear IF magnifier, I/Q channels, high speed A/D converters and wide measurement gate.
本文讨论了用直接对带限中频信号进行采样的方法来实现正交相干检波的基本原理，它们在工程实际中有很大的实用价值。
The principles of realizing quadrature coherent detector by direct sampling of bandlimited signal are discussed in this paper. They have great practical value in engineering.
接收机的每个通道都由高频放大器、中频放大、中频采样、数字正交器组成，另外还有DDS信号产生和频率激励源用来形成雷达发射机所需的S波段脉冲调制激励信号。
Each of them is composed of high frequency amplifier, intermediate frequency amplifier and sampling, digital phase uprightness intersector, DDS and the S band signal inspirator for the transmitter.
新的偏移算法考虑了倾斜的正交晶系各向异性，这对增强采样有一定的影响。
New migration algorithms incorporated tilted orthorhombic anisotropy, which leveraged the enhanced sampling.
新的偏移算法考虑了倾斜的正交晶系各向异性，这对增强采样有一定的影响。
New migration algorithms incorporated tilted orthorhombic anisotropy, which leveraged the enhanced sampling.
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