spectrum sequence的例句大全

direct sequence spread spectrum ( dsss) technology is widely applied in modern communication system because of its advantages on anti-jamming and high security.

直接序列扩频通信系统（DSSS）凭借其抗干扰能力强、保密性好等诸多优点在现代通信中获得了广泛的应用。

Spread spectrum has two distinct flavors: direct sequence and frequency hopping.

该技术有两个明显的变型: 直接顺序与跳频.

In DS-CDMA , the spectrum is spread by multiplying the baseband signal with a fast pseudorandom sequence.

在DS -CDMA 技术中, 频谱通过倍乘伪随机序列基带快速扩展.

The absolute summability of autocorrelation sequence imposes only the continuity constraint on the power spectrum.

另外,绝对可加性自相关数列之假设只是意指在频谱中必须连续.

Research on Application of Low/ Zero Correlation Zone Sequence Pairs in Spread Spectrum Communication System

低/零相关区序列偶应用于扩频通信系统的研究

Pseudo random sequence has broad applications in stream cipher , channel coding, and spread spectrum communication.

伪随机序列在流密码 、 信道编码 、 频通信等领域有着广泛的应用.

Among the many Spread Spectrum technologies, Direct Sequence Spread Spectrum ( DSSS ) is a most popular technique.

直接序列扩频通信 ( DSSS ) 系统是应用最广泛的一种扩频通信方式.

Realization of Suppression of Narrow-Band Interferences In Direct Sequence Spread Spectrum Signal Using Frequency-Domain Algorithm

直扩信号中多窄带干扰自适应抑制的频域算法及系统实现

The cyclic auto correlation and cyclic spectrum of the sampled sequence are derived, which become time average auto correlation and time average spectrum when the cyclic frequency is set to zero.

推导了样值序列的周期自相关和周期谱，当周期频率为零时，它们分别等于时间平均自相关和时间平均功率谱。

This paper borrows the idea from spread spectrum watermark, quantizes the wavelet transform coefficients the copyright protected image to produce a binary sequence, which is just the watermark.

本文的水印方法借助扩频水印的思想，通过量化函数对版权保护图像的小波变换系数进行量化，产生的二值序列作为水印。

In order to reduce the interference to other communications systems during transmission, the method of spread spectrum is proposed, including the time hopping and direct sequence.

为了减小在传输过程中对其他通信系统产生干扰，提出了频谱扩展的方法，包括时间跳跃和直接序列。

In this paper, the multiple access performances of spread spectrum with chaotic sequence and that with pseudo-random sequence, pseudo-( chaotic) time hopping and conventional time hopping are compared, in terms of theoretical analysis of bit error rate, simulation results and the receiver.

从误码率理论分析、性能仿真和接收机结构等几个方面对混沌序列扩频与伪随机序列扩频、伪混沌跳时与传统跳时多址接入方式进行比较研究。

Then the key technologies of air interface are put forward, including the direct sequence spread spectrum, full-duplex, time-division multiple access, code-division multiple access, error control, mobility management and data communication protocol.

然后分析了无线数据平台使用的技术：直接序列扩频、全双工、时分复用多址、码分复用多址、差错控制、移动性管理、数据通信协议；