查询词典 signal

The pulsar signal is a kind of typical nonstationary random signal which SNR is very low.

脉冲星信号是一种典型的非平稳信号，且信噪比非常小。

The treatment to pulsar signal only confine to the adding of the pulsar signal by cycles at present.

目前对脉冲星信号的处理仅局限于对脉冲星信号不同周期的迭加。

In order to improve the signal-to-noise ratio of the pulsar signal, a wavelet denoising algorithm based on fuzzy threshold is put forward.

为了提高脉冲星辐射脉冲信号的信噪比，提出了基于模糊阈值的小波降噪算法。

A digital signal is a pulsating signal composed of the two basic codes "0" and "1".

数字信号是由"0""1"两个基本量组成的脉冲信号。

this paper introduces a lossless detected circuit system.firstly,system gathers slender infrared signal with transducer,then amplifies them with low noise.through voltage comparator circuit,transforming simulation objection signals to digital signals.finally,transforming transport landscape orientation and portrait to single chip processing.in design of pcb,the amplifying of quadruplet signal,filter,voltage comparator decree and and logic function are manufactured in one board.if the diameter of workpiece is long,it can add multiple the number of transducer of four,to wide its range of practice,disposing circuit only need one module.

摘 要：介绍了一种无损检测的电路系统。系统首先利用传感器采集到微弱的缺陷信号，再将缺陷信号进行低噪声放大，然后通过电压比较判决电路将模拟缺陷信号变换成数字信号，最终将横、纵两路的输出信号送至单片机处理。在pcb设计中，将四路信号的放大、滤波、电压判决以及与逻辑功能做在一块板上，若被检测工件的直径较大，可以将传感器的个数以四的倍数增加，处理电路只需增加一个模块。

Relative signal intensity quantize the change of signal intensity in disc andassess objectively.

但关于信号强度改变与椎间盘组织病理学及基质代谢的关系尚无报告。

Based on the technique of radiate temperature measurement, the author designs a circuit of prismatic decomposition colorimetric radiate temperature measuring. A high resolution A/D converter and measurement range switch technology are adopted to resolve the problem that it has lower radiation power and lower signal sensitivity in the low-temperature stage, while higher signal amplitude and higher need of dynamic range in the high-temperature stage. The technique of the Black Body Furnace demarcates, digital calibration and the quartic curve fitting are applied to correct the sensor and improve its measurement precision.

3研究了辐射温度测量技术，设计了棱镜分光比色辐射温度测量电路，使用高分辨率A／D转换器和量程切换技术解决低温段辐射能量小、信号灵敏度低，而高温段信号幅值大，动态范围要求高的矛盾，应用黑体炉标定技术和数字校准方法以及4次拟合校正技术提高温度测量精度。

A fire\|new theory for periodic or quasi\|periodic signal sampling is proposed,w hich is especially for sampling high\|frequency wideband periodic or quasi\|peri odic signal by low sampling rate system.

涉及一种周期或准周期信号的采样技术，特别适用于低频采样系统采集高频宽带周期或准周期信号。

A signal switch may also send a query message to the signal control point, which acts as a centralized database for routing instructions, such as how to handle 800/888 calls.

信号交换机也可以向信号控制点发送一个查询信息，该信号控制点起到路由指令（如怎样处理800/888对方付费电话）的集中化的数据库的作用。

However 3 quoit flow form mechanism, the big compression ring of " whole world in active teaching material sheds signal " to pursue, signal is not quite intuitionistic, fragile to geographical ABC, space envisages ability to return not quite strong Gao Yixue to say natively, understand hard and accept.

然而三圈环流的形成机理，现行教材中的"全球大气环流示意"图，示意不够直观，对于地理基础知识薄弱、空间想像能力还不太强的高一学生来说，难以理解和接受。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。