But the signal environment that includes external noise, different kinds of clutter and interference will significantly limit the detection performance and system capability.
但是,包含外部噪声、各种不同杂波和干扰的信号环境将大大限制探测性能和系统能力。
In direct sequence code division multiple access (DS-CDMA) communications, blind signal detection and interference cancellation are the important methods to increase system capacities.
在直扩码分多址(DS - CDMA)通信中,盲信号检测及干扰抑制技术是增加系统容量的重要手段。
A detection system for counting shift number of interference fringe is established.
在检测系统中实现了对干涉条纹移动量的计数。
Multi-user detection technique can cancel multi-access interference, so it can enhance the capacity and performance of CDMA system.
利用多用户检测技术可以抑制多址干扰,从而提高CDMA系统的容量和性能。
Multiuser detection can efficiently reduce Multi-access Interference in CDMA system. At the same time, it can increase system capability and improve near-far effect.
码分多址系统中的多用户信号检测,能有效地减少多址干扰、增加系统的容量、改善远近效应。
Based on the analysis of interference stripes of equal thickness generated by the parallel laser on optical wedge, a new scheme for laser orientation detection system is presented.
通过对平行激光在光学劈尖上产生等厚干涉条纹的分析,提出了一种新的激光方位探测方案。
Based on a data acquisition system for ultrasonic flaw detection, the paper describes the effect of interference on data acquisition systems and methods for the suppression of interference.
基于超声探伤的数据采集系统,提出了各种干扰对系统的影响及干扰的抑制方法。
The third Generation mobile communication system includes highly effective channel encoding-decoding, software radio, smart antenna, multi-user detection and interference cancellation etc.
第三代移动通信系统的关键技术包括高效信道编译码技术、软件无线电技术、智能天线技术、多用检测和干扰消除技术等。
This article mainly summarizes and generalizes determination system and condition, detection limit or sensitivity, interference, determination range, application of photometric analysis and so on.
主要从测定体系与测定条件,相应光度分析方法的检出限或灵敏度、干扰情况、测定范围及实际应用等方面加以归纳和概述。
So it is necessary to find a way to constrain the self-dithering interference of the non-contact life-detection system and raise SNR so as to extract the life-parameter signal of human subject.
因此,必须设法抑制由于外界作用而使非接触生命参数检测系统产生的自抖动干扰,提高信噪比,检测出人体的生命参数信号。
The capacity and performance of a DS-CDMA system is greatly limited by Multiple Access Interference (MAI) and therefore many multiuser detection algorithms have been proposed.
在直序扩频码分多址(DS -CDMA)系统中,多址干扰(MAI)极大地制约系统容量及性能。
The influences of atmospheric turbulence on interference efficiency due to the angle of arrival fluctuation in the laser heterodyne detection system were presented.
提出了一套新颖扫描成像系统方案,它综合了共焦扫描方式与光外差探测方法的优点。
Hardware in the control system is composed of 87c196mc microcontroller, power transform, driving circuit and detection unit and with good property of anti-interference.
控制系统的硬件由87c 196MC单片机、功率转换及驱动电路、检测环节构成,具有较好的抗干扰性能。
The advantages of CAN bus are fully adopted in this strategy, and the performance of the system is upgraded to offer better capabilities for anti-interference, error detection and error correction.
该方案充分利用了CAN总线的特点,有效地提升了系统的性能,并使之具有良好的抗干扰能力和检错、纠错能力。
Compared to the traditional analogue circuit, the detection system based on a digital circuit has a higher flexibility, smaller size, with the advantages of anti-interference and signal processing.
相比于传统的模拟检测技术,数字检测技术具有稳定性好、抗干扰能力强、处理速度快和体积小、易于集成等优势。
The results indicate that the preprocessing not only makes the system has higher ability of target detection but also suppresses the radio frequency interference by 6~7 dB.
该方法通过最大值搜索法进行地波定标、平均插值法消除盲区和统计阈值法消除射频干扰,然后将探测得到的数据进行处理。
The results indicate that the preprocessing not only makes the system has higher ability of target detection but also suppresses the radio frequency interference by 6~7 dB.
该方法通过最大值搜索法进行地波定标、平均插值法消除盲区和统计阈值法消除射频干扰,然后将探测得到的数据进行处理。
应用推荐