脉冲超宽带(IR - UWB)信号在密集多径环境中存在严重的时间弥散,会产生波形失真。
In dense multipath environments, IR-UWB (impulse Radio-Ultra Wideband) signals suffer from severe time dispersion which distorts the impulse wave.
在脉冲超宽带穿墙检测与定位当中,要求天线在水平面内具有宽波束以达到对房屋内部区域的有效覆盖;
Wide beam width in horizon plane would be expected in antenna design for IR-UWB through-the-wall detection to cover most area of the room.
提出一种应用于脉冲超宽带相关接收机的新型门控积分方法,它利用简单的线性时不变系统实现带清除的积分。
In this paper a novel gated integrating method for IR-UWB correlation receiver is proposed, which USES linear time-invariant system to approximate integrator with discharging.
超宽带脉冲是运用超高频在很短的距离内传输海量数据的最新尖端技术,比如从iPod样式的播放器向电视银屏传输视频文件。
A new advance is ultra-wideband (UWB) technology, which USES very high frequencies at very short range to transmit huge amounts of data, as in sending video from an iPod-like device to a TV screen.
分析了超宽带冲激脉冲雷达与连续波雷达的不同的回波特性,指出冲激脉冲雷达对超低空目标探测的潜在优势。
Differences of echo characteristic between impulse radar and continuous wave radar are analyzed, and the potential of UWB impulse for Super-Low-Altitude target-detection is remarked.
冲击脉冲雷达,又称作无载波雷达和视频脉冲雷达,是超宽带雷达的一个分支和特例。
Impulse radar, also known as non-career radar and video pulse radar, is a branch or a special case of the Ultra Wide Band (UWB) radar.
讨论了采用级联双极性晶体管结构的超宽带极脉冲发生器,并对其电路及双极性晶体管雪崩的工作原理进行了具体分析。
The paper analyses the electric circuit and the working principle of the avalanche of the bipolar transistor of the pulser with a cascade connected bipolar transistor structure.
超宽带(uwb)无线通信通过直接发送脉冲无线电信号传送数据。
Ultra Wide-band (UWB) wireless communication technology transmits data through sending pulse radio signals directly.
超宽带冲激无线电技术是近年来新兴的通信技术,其主要核心技术是采用了冲激脉冲技术和跳时码调制。
The UWB impulse radio technology is a new kind of communication method these years, in which the swash impulse and time-hopping code modulation techniques are mainly applied.
时间脉冲位置调制(PPM)技术在超宽带无线数字通信领域得到了广泛应用。
The pulse position modulation (PPM) technique is widely used in the field of ultra-wideband wireless digital communication.
第3章主要介绍了一种基于扁长椭球波函数的超宽带成形脉冲优化设计算法。
In chapter 3, a novel optimal UWB shaping pulse design algorithm based on prolate spheroidal wave functions is described.
通过概率的表达式来评定类高斯噪声的准确性,从而可以对超宽带脉冲无线电网络的类高斯噪声性能进行分析。
This is used to assess the accuracy of the Gaussian approximation commonly used in the performance analysis of UWB impulse radio networks.
对线性调频(LFM)信号的三种主要数字产生方法进行分析,提出一种基于波形存储直读法的超宽带线性调频脉冲压缩信号数字产生系统方案。
On the basis of the waveform storage method, a digital generation system scheme for ultra wide-band LFM pulse compression signals is proposed in this paper.
分析了超宽带冲激无线电的脉位调制、通断键控调制和脉冲幅度调制的信号模型。
The ultra wideband (UWB) radio models have been introduced with pulse-position-modulation (PPM), on-off-keying (OOK) and pulse-amplitude-modulation (PAM).
超宽带(UW B)技术实现的关键之一是如何设计并产生可以控制的UW B极窄脉冲。
The key of Ultra-wideband(UWB) technology lies in how to generate the fast rise-time and short-duration pulse.
对脉冲体制的超宽带正交解调接收机幅相误差模型进行了深入分析。
The error model in UWB impulse quadrature demodulation receiver has been analyzed.
在研究匹配滤波和重采样原理的基础上,利用频带分割和多通道综合技术实现超宽带信号的脉冲压缩。
Then, a method exploiting the techniques of intersection of spectrum and multi-channel synthesis is presented to fulfill the pulse compression of the ultra-wideband signal.
基于窄脉冲串的超宽带无线电系统是一种典型的超宽带实现方式。
The UWB system based on narrow pulses train is a typical UWB system.
通过超宽带电磁脉冲对无线电引信的辐照实验,研究了无线电引信在超宽带电磁脉冲作用下的效应。
By the irradiation experiments of ultra-wideband electromagnetism pulse (UWB EMP) to radio fuse, the effects of radio fuse are studied.
同时,利用中频数字直接产生技术辅以倍频链还可实现宽带、超宽带雷达脉冲压缩信号的产生。
Meanwhile, this technology cooperating double frequency chain can also generate wide band and ultra-wide band radar pulse compression signals.
实验表明:无线电引信在超宽带电磁脉冲照射下,会产生早炸现象。
The experiments show that radio fuse may explode early when UWB EMP irradiate it.
提出了一种新型的用于超宽带系统的高斯脉冲发生器。
A new ultra wideband (UWB), low-complexity and step recovery diode Gaussian pulse generator is introduced.
探地雷达系统一般采用超宽带短脉冲信号,因而其天线系统必须具有较好的宽带性能。
The ground penetrating radar (GPR) systems usually use broadband electromagnetic pulse, so the antennas must be wideband and can couple electromagnetic energy into the ground.
用于检测隐藏活动目标的超宽带雷达就是基于基带无载波极窄脉冲的,有着广阔的应用前景。
Ultra wideband radar, using the promising and novel radio technology in detecting hidden targets, has a broad application prospect.
近年来,超宽带脉冲无线电UWB-IR传输技术以低功耗、高速率、低检测率和低截获率等特点受到军事通信领域的关注。
UWB-IR technology has been concerned in military communications in recent years because of its high data rate, low power consumption, low probability of detection and low probability of interception.
由于超宽带脉冲信号的极窄特性,室内密集多径信道将使超宽带信号产生严重的时间弥散。
Due to the extremely narrow character of UWB signal, dense multipath indoor channel will make UWB signal dispersed severely.
超宽带(uwb)通信通过传输能量极低的极短脉冲和占用超大带宽来完成短距离的高速通信。
Ultra Wideband (UWB) system is an attractive high speed wireless communication scheme for short range communication. It transmits extremely short pulses, which occupy ultra wide band.
典型的超宽带雷达系统发射的是冲激脉冲信号,具有很大的带宽,但限制了系统的作用距离。
A typical Ultra Wideband Radar system emits impulse signal, which has wide band, but limited operating range.
首先介绍并比较分析超宽带信号的波形、调制方式和接收机信号处理方法,讨论了超宽带窄脉冲的产生方法。
Firstly, the waveforms of UWB signal and their modulation modes, signal processing of receiver are introduced and compared. The method for generation of UWB narrow pulse is reviewed.
首先介绍并比较分析超宽带信号的波形、调制方式和接收机信号处理方法,讨论了超宽带窄脉冲的产生方法。
Firstly, the waveforms of UWB signal and their modulation modes, signal processing of receiver are introduced and compared. The method for generation of UWB narrow pulse is reviewed.
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