查询词典 signal

On the base of campestral investigation,the author mainly studies the characteristics and relations between Fengshui and sacrificial rites on the old lounge bridges in the east of Fujian province,and points out that the appearing signal of the old lounge bridges mixed together the bridges and the local village culture by means of their formal signal and their symbolic expression.

在田野调查的基础上，主要考察闽东廊桥在风水与祭祀两个方面的种种表征，指出廊桥凭借自身外显的形式符号，借助象征语言将桥梁与村落文化融为一体；廊桥既具现实的利民渡涉的作用，又反映了闽东乡民观念中的趋福避祸的心理，具有丰富的文化内涵。

It can be seen from the theoretical analysis that the signal to noise ratio in the output of the canceler will improve when the signal to noise ratio in the reference input drops.

通过理论分析可以看出，随着本艇自噪声有源抵消器参考输入端信噪比的降低，系统输出端信噪比升高。

To detect the carrier signal in the background of strong interference, a Duffing chaotic oscillator was applied to the triple-state pulse position modulation signal detection.

为了检测在强干扰背景下的载波信号，提出了将 Duffing 混沌振子应用到三态脉冲位置调制信号检测中。

The chrominance signal is contained on a 3.58 MHz carrier wave added to the black and white video signal.

电视信号被包含在能增加到黑白的电视信号的一个3.58百万赫兹的运送波上。

This paper, aiming at this kind of circumstance, by the research of signal analysis and processing, has carry out a digital signal processing system on the platform of the Virtual Instrument.

本文就是针对这种情况，通过对信号处理方面的研究，并在虚拟仪器的平台上来实现数字信号处理。

The wavelet analysis can divide signal into different frequency bands and carry out inchoate signal decomposition and extracting.

小波分析能将信号划分到不同频段内，实现微弱故障信号的分离和提取。

The hardware uses many kinds of signal gathering method in view of the different categorys signal to carry on the data gathering processing.

检测仪的核心控制单元采用TI公司的16位单片机MSP430F169，其片上资源丰富、抗干扰性强。

This means that the CPWM signal carry digital information can play the role of synchronization signal as well.

即混沌脉冲宽度调制信号既可作为调制信号携带数字信息又可作为同步信号使收、发端混沌振荡电路系统同步。

The main jobs of the paper are as follows, Multi-scale decomposition and reconstruction of wavelet transform is utilized to filter the noise of negative-pressure-wave, which is brought by leakage. With the capacity to detect the signal singularity quickly and accurately, wavelet transform was used to catch the break point of pressure signal. Accordingly, the work improved the location accuracy.

主要研究工作有：利用小波变换的多分辨率分解和重构技术，对采集到的管道泄漏产生的负压波信号进行消噪处理，并对几个影响消噪质量的关键因素及其选取方法进行了分析；再利用小波变换技术对信号奇异点的快速、准确的识别能力，对经消噪后的负压波信号进行奇异点捕捉，从而实现更精确的单条燃气管道泄漏定位。

This paper combines with pipeline delivery of our countrys actual conditions and other methods of detection and location. To the leakage characteristic of the fault to the long-distance natural gas pipeline, a method is raised, which is on the basis of wavelet and negative-pressure-wave to detect the leakage and locate. Jobs in this paper are as follows:Multi-resolution decomposition and reconstruction of wavelet transform is utilized to filter the noises, which the leakage brings the noises of negative-pressure-wave. The research is worked in the wavelet and wavelet packet filter. The wavelet transform have a fast and accurate recognition capability to signal singularity. This paper chooses wavelet technology to catch the break point of pressure signal.

本文结合我国管道输送的实际情况和目前现有的各种泄漏检测与定位方法，针对天然气长输管线泄漏故障的特点，提出了基于小波分析和负压波相结合的方法检测泄漏并定位，其中主要进行了以下几个方面的工作：利用小波变换的多分辨率分解和重构技术，对采集到的管道发生泄漏时产生的负压波信号进行降噪处理，并对小波及小波包优化的降噪效果进行对比性研究；利用小波变换技术对信号奇异点的快速、准确的识别能力，捕捉负压波信号的突变点，从而判断是否有泄漏发生。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。