• The spreading signal is a pseudo-noise code sequence that has a chip rate which is orders of magnitudes grater than the data rate of the message.

    扩频信号是一个伪随机代码序列,此码片速率比消息数据速率高若干数量级。

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  • The effects of several types of oppressive broadband interference (BPSK interference, FM interference) on pseudo noise coded fuze system are analyzed.

    压迫宽带干扰(BPSK干扰,FM干扰)的几种类型的伪噪声编码引信系统的影响进行了分析。

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  • In chapter 5 the jamming such as phase modulation noise, binary pseudo random sequence and multiple pseudo targets are discussed.

    第五章对雷达干扰进行了阐述,主要的干扰信号有连续噪声调相干扰、伪随机码噪声干扰、多假目标干扰。

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  • A method for hiding ciphertext in the noisy stream is presented, with the ciphertext embedded in a noise stream by a pseudo sequence which is controlled by the noisy stream.

    提出了一种在随机噪声中的密文隐藏方法,该方法主要采用噪声控制技术将密文嵌入噪声流中。

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  • A new receiver structure was proposed for adaptive smart antennas in CDMA mobile communication systems, requiring only the knowledge of the desired user's pseudo noise (PN) code sequence.

    利用码分多址(CDMA)系统中的用户伪随机(PN)码信息,提出了一种新的自适应智能天线结构。

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  • The pseudo random noise ranging code has been applied extensively to spread spectrum communications.

    伪随机码在扩频通信中得到广泛应用。

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  • The seismic ground motion is assumed to be double filtered white noise, and pseudo excitation approach is employed to calculate the random response.

    采用双过滤白噪声功率谱模型描述地震动,并用林家浩虚拟激励法进行随机响应分析。

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  • The pseudo-random data are widely applied in digital signal processing. White noise data is the basis of generating random data, which has the expected probability distribution.

    伪随机噪声在数字信号处理中具有重要的实用价值,白噪声是产生具有指定概率分布的伪随机噪声的基础。

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  • The basic idea of pseudo noise sequence and its typical application in radar signal designing were introduced in this paper.

    介绍了伪随机序列的基本知识以及该理论在扩谱雷达波形设计中的典型应用。

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  • The results show that the input white noise can be substitute by pseudo-random signals in identifying the impulse response of a drill-string system.

    研究了伪随机信号的特征及伪随机信号产生的方法,得出了用伪随机信号代替白噪声信号辨识钻柱系统脉冲响应的结论。

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  • Because of the limits of feedback devices, high speed pseudo noise code generation cannot depend simply on the improvement of clock rate.

    由于反馈器件的限制,高速伪码不能采用单独依赖提高时钟频率的方法。

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  • This dissertation discusses the techniques used in the analysis process, such as image packaging, noise processing and pseudo-color processing.

    本论文讨论了分析过程中所用到的图像封装、噪声处理和伪彩色处理等技术。

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  • Treating secret information is to enlarge its spectrum and pseudo - randomizes it so that make secret information not detected like stochastic noise.

    对秘密信息的处理来说,可以将秘密信息扩频和伪随机化,使其具有类似于随机噪声的特性从而不易被探知。

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  • Numerical experiments show that our new method can significantly improve the signal-to-noise rate while depressing Pseudo-Gibbs phenomena.

    试验表明,本文方法与传统的阈值去噪方法相比在抑制震荡的同时能显著地提高信噪比。

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  • The spread spectrum (SS) signal is modulated by high-rate pseudo noise code, and belongs to typically periodic signal.

    被高速伪随机码调制的扩频信号,其伪随机码是具有随机编码信号特征的周期信号。

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  • Software and hardware implementation of ranging was sum up including triangulation & parallax measuring, pulse current ranging and pseudo random noise ranging.

    总结了测距功能的软硬件实现技术,包括传统的三角测量和视差测距技术、电脉冲测距技术、伪码扩频脉冲串测距技术。

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  • Also these methods a re analyzed and compared in the factual condition and a perfect pseudo noise code ranging method is educed. That is PN code ranging with on -board processing.

    结合实际情况对这几种方法进行分析比较,在现有技术设备条件下得到了一种比较理想的伪随机码测距方法—星上处理伪随机码测距。

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  • In communication of deep space, the receiving of low signal-to-noise and multi-address communication can be realized with pseudo-random code signal.

    深空通信中,利用伪随机编码信号可实现低信噪比接收和多址通信。

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  • The searching range of pseudo noise code was narrowed utilizing to the information provided by epicheirema. The lost reacquisition time was shortened.

    利用有效星历所提供的先验信息,对伪随机码的搜索范围进行压缩,缩短了伪随机码失锁重捕的时间;

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  • The searching range of pseudo noise code was narrowed utilizing to the information provided by epicheirema. The lost reacquisition time was shortened.

    利用有效星历所提供的先验信息,对伪随机码的搜索范围进行压缩,缩短了伪随机码失锁重捕的时间;

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