signal attenuation
[电子] 信号衰减
2026-03-22 09:27 浏览次数 26
[电子] 信号衰减
some (apple included) have pointed out that all phones suffer some signal attenuation when held near the antenna.
一些人(包括苹果公司)指出,只要握在天线附近,所有的手机都会出现信号衰弱的问题。
atmosphere conditions cause signal attenuation and random fluctuation, shorten link range, and make it difficult to achieve all-weather communication.
大气信道带来功率损耗和随机性,导致传输距离短,难以实现全天侯通信;
according to this paper, the frequency and intensity of the signal attenuation on transmission line are mainly depended on the ferromagnetic resonance frequency and eddy current loss.
通过本文的研究表明,传输线上信号的衰减频率和强度主要依赖于磁性薄膜材料的亚铁磁共振频率和涡流损耗。
the results show that the system improved the vga signal attenuation and distortion, achieved high-quality, long-distance transmission.
实验结果表明,该系统有效改善了vga信号的衰减和失真现象,可保证信号的高质量、长距离传输。
in scanner controlling aspect, a chromatism compensation technology is put forward, so as to solve the problem of signal attenuation and prolong the life span of scanners.
在扫描仪控制方面,提出了色差补偿技术,解决了扫描仪在长期使用后出现的信号衰减问题,延长了扫描仪的使用寿命。
two kinds of program control signal attenuation circuits, which are used in circuit design, are introduced.
本文介绍线路设计中所应用的两种程控信号衰减电路。
methods; to study the relationship between signal attenuation and temperature or time by the theory of diffusion movements on classical physics.
方法:用经典物理学的扩散理论探讨扩散运动引起的信号衰减与温度、时间的关系。
signal attenuation in the power line environment is often great, and unpredictable.
信号衰减在输电线环境经常是伟大和变化莫测的。
ferromagnetic resonance frequency change might lead to signal attenuation peak frequency corresponding change.
亚铁磁共振频率的改变会引起信号衰减峰值出现频率的相应改变。
what is the maximum distance that 10base-t will transmit data before signal attenuation affects the data delivery?
什么10base-t将传输资料在讯号衰退影响资料传输之前最大距离?。
the circuits can be realized easily and used conveniently and have a wide attenuation range. and the signal attenuation control can be automatized.
这两种电路容易实现,使用简便,具有较大的衰减范围,实现了信号衰减控制自动化。
secondly, due to the existence of huge modern buildings, how to reduce the wiring cost and decrease the signal attenuation in analogue audio broadcast system is a troublesome problem.
现代建筑物规模庞大,如何减少布线成本和降低信号衰减已成为模拟音频广播系统中非常棘手的问题;
simulation results showed that, with the same roughness of a tunnel, both the delay spread and the signal attenuation varied with the carrier frequency.
结果表明,隧道中信号传输的时延扩展和信号的衰减均与载波频率有关。
in powerline carrier wave application, signal disturbing and signal attenuation is the important reason of effecting signal transmission.
在电力载波技术的应用中,信号干扰和衰减是影响信号传输的重要原因。
the system has strong interference resistance, avoids signal attenuation and distortion, and has excellent working performance.
本发明抗干扰能力强,避免信号衰减和失真,工作性能优良。
objective; to compare the dependence of signal attenuation on temperature and time caused by the diffusion movements in inhomogeneous and linear gradient magnetic field.
目的:比较非理想均匀磁场和线性梯度磁场中扩散运动引起的信号衰减对温度、时间的依赖性。
the scheme has biggish innovations on power amplification, automatism rearrange, perturb resisting, signal attenuation preventing, real time video frequency signal surveillance etc.
该设计方案在功率放大、全自动倒换、抗干扰、抗信号衰弱、实时视频信号监控等方面都有较大创新。
a new mobile station locating algorithm by the signal attenuation method is devel- oped.
提出了一种无线移动网中移动台场强法定位的新算法。
the correlation between signal attenuation and moisture absorption of the cable is studied, and a measurement method for cable moistureproof performance by using transmission attenuation is proposed.
研究了信号衰减与电缆吸潮的相关关系,提出以传输衰减表征线缆防潮性能的测量方法;