The invention relates to a method and a system for modeling I-UWB (Impulse-Ultra Wide Band) signal multipath transmission characteristics in an indoor visual range environment.
本发明涉及对室内视距环境下i - UWB信号多径传播特性进行建模的方法和系统。
Since K-Band frequency is 2.5 times higher than X-Band, the multipath signal generated by an intruder is also 2.5 times higher, vastly improving detection of slow and fast-moving targets.
因为K波段比x波段高2.5倍，由干扰产生的多信道信号频率也要高2.5倍，这极大改善了对慢速和快速移动目标的探测。
Based on the signal model and the multipath channel model of CDMA system, the steering vectors of multipaths of USES are estimated by using cold filtering method.
根据CDMA系统信号模型和多径信道模型，运用码滤波方法对CD MA系统用户信号及其多径信号导引向量进行估计。
Fractal characteristic of multipath fading signal is studied in the paper which shows that multifractal dimension is a key parameter for describing the signal propagation in wireless channels.
本文研究多径衰落信号的多重分形性质，分析并指出了信号多重分形维数是描述无线信道传播特性的重要参数；
Due to the extremely narrow character of UWB signal, dense multipath indoor channel will make UWB signal dispersed severely.
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。
In shortwave communication system, Intersymbol Interference is serious and signal is distorted extremely because of fading channel resulted in by the effect of multipath.
在短波通信系统中，由于多径效应常常引起信道衰落，直接结果是码间串扰非常严重。
They are relatively immune to multipath cancellation effects, such as when a strong reflected wave arrives out of phase with the direct path signal, reducing the signal strength in the receiver.
相对而言，它们不受多路径消除效应的影响，例如当返回的强反射波与直接路径信号不同相位时，降低了接收机中的信号强度。
Secondly, the stationary points of the LCCM cost function are analyzed to demonstrate that the LCCMA attempts to suppress multipath of the desired user's signal rather than exploit it.
其次，通过分析代价函数的稳定点，证明LCCMA算法只是试图抑制期望用户信号的多径，而不是利用它。
The closed expression form of the maximum carrier phase tracking error caused by multipath effect is derived in this paper based on multipath signal characteristics and GPS receiver work mechanism.
推导了GPS接收机中多径效应引入的最大载波相位跟踪误差的闭合形式。
A waveform design method that can restrain the multipath effect was proposed. It was achieved by placing signal on the second zero point of waveform filter and keeping the information rate.
提出了一种能够抑制多径干扰的基带波形设计方法，该方法是通过保持传输信息速率不变，在成形滤波器第二个零点叠加信号来实现的。
This article studies global positioning systems (GPS) multipath signal estimation.
研究全球定位系统(GPS)多径信号估计的问题。
Some new developments in CDMA system coding filed are focused on. Finally multipath signal reception techniques of CDMA system based on …
文章追踪了CDMA系统编码领域的最新动态，并在最后给出了正交全补码的CDMA系统的多径信号接收技术。
Transparent tone-in-band(TTIB) and feedforward signal regeneration(FFSR) is a technology to combat the effects of multipath propagation delay and doppler effect in wireless channels.
TTIB（透明带内导音）及FFSR（前馈信号再生）技术是一种可抗无线信道中多径时延及多谱勒频移引起的信号衰落的技术。
However, as a wireless communication system, the signal transmitted on the wireless channel should be affected by multipath fast fading and the received quality of the signal will be lowered.
但作为一个无线通信系统，所传输的信号必然受到无线信道的多径快衰落影响从而降低信号的接收质量。
By including the multipath reflections in the mathematical equations, the processor can extrapolate not only the direction of the signal but also the exact position of the user's cell phone.
把多路径的反射加入数学程序之后，处理器不仅可以外推出讯号的方向，还可以算出用户行动电话的确切位置。
In multipath propagation model, arrival Angle, delay and strength received by an antenna array for same signal source are estimated.
利用天线阵列对同一信源信号经过多径传输到达终端的时间时延、角度和强度进行了联合估计。
Multipath time delay estimation is constrained by the width of the signal correlation function when using correlation method.
当采用相关法估计时间延迟时，多径时延的分辨率受到相关函数主(？)宽度的限制。
In this paper the regular equations of ar and MA models built for multipath channels are derived, and an iterative algorithm of direct signal and multipath clutter cancellation is proposed.
文中推导了采用AR模型和MA模型对多径信道建模的正则方程，提出了采用混合模型消除直达波与杂波的迭代算法。
This paper introduces a data acquisition system of airborne missiles, which collects a large capacity of data of multipath signal with single chip microprocessor 8031.
本文介绍所研制的一种机载导弹的数据采集系统。系统选用8031单片机对多路信号进行大容量数据采集。
In wireless communication system, Inter-symbol Interference is serious and signal is distorted extremely because of fading channel resulted in by the effect of multipath.
在无线通信系统中，由于多径效应常常引起信道衰落，直接结果是码间干扰非常严重。
M sequence signal can be chosen as the receiving deterministic pulse signal when using acoustic vector to determine the direction of the sound source. It possesses favorable anti-multipath capability.
利用矢量水听器接收确知脉冲信号来确定声源方位时，脉冲信号形式可以考虑采用M序列调相信号，具有良好的抗多途效应。
This paper presents a blind algorithm to estimate the signal-to-noise ratio(SNR) of a communication signal in multipath Rayleigh fading channel .
提出了一种在多径瑞利衰落信道中的信噪比盲估计算法。
The received signal is often corrupted badly by inter-symbol interference in the multipath fa- ding wireless channel circumstance.
数字通信系统中多径衰落的无线信道环境通常会使接收信号受到严重的码间干扰。
Temporal focus can depress the multipath effect and improve the signal noise rate (SNR) of the system.
时间聚焦可以提高通信系统的信噪比、克服复杂环境的多径衰落。
Temporal focus can depress the multipath effect and improve the signal noise rate (SNR) of the system.
时间聚焦可以提高通信系统的信噪比、克服复杂环境的多径衰落。
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