查询词典 noise-signal ratio

For frequency information fluid identification technology:the basic theory of fluid identification based on frequency information has been introduced,for inner and external factor affecting frequency,some steps have been proposed to attain reserved amplitude and frequency analysis data with high resolution,high S/N ratio;through the comparison of time-frequency analysis method, the high accuracy time-frequency analysis method has been selected to extract time-frequency attributes;the analysis method flow of common single frequency fluid identification has been proposed,according to the data of full frequency band,several anomaly zone modes of common single frequency attribute have segregated; incorporating converted wave and compression wave,fluid identification method based on PS wave combined time-frequency analysis has been proposed;the AVO property of various fluid type in frequency domain has been studied;the generalized fourier analysis method,Proni absorption filter has been introduced,and researched for anti-noise and for the seismic processing interpretation flow.The above technology have been applied to fluid identification of organic reef in WBT area in the east of Sichuan and fluid identification of clastic rock in GUANGAN area in the middle of Sichuan,the results show that the above methods are effective.

基于频率信息的流体识别技术方面：介绍了利用频率信息流体识别的基本理论，针对影响频率的内、外在因素，提出一些针对措施，以获得高分辨率、高信噪比的保幅、保频分析数据；通过时频分析方法的比较，选取高精度的时频分析方法提取时频属性；提出共单频属性进行流体识别的分析方法流程，结合全频带数据，分出几种共单频属性异常带模式；联合转换波资料和纵波资料，提出基于纵横波联合时频分析进行流体识别方法；研究了频率域内不同流体类型AVO现象；引进一种广义傅立叶分析方法：Proni吸收滤波，研究其抗噪性以及进行地震处理解释的流程；将这些技术应用川东北五百梯区块进行生物礁储层流体的识别和川中广安陆相碎屑岩的流体识别，取得较好的效果。

With ASFC technology, it shall be possible to increase efficiently fan/compressor pressure ratio, but also reduce the axial length and weight of the engine a well as the noise of fans. Meanwhile, it increases the flexibility sad payload of the flight vehicle, thus reducing the fuel consumption.

这一技术的采用能够大幅度提高压比，减少发动机的轴向长度和重量，降低风扇的噪音；在做功能力增加重量减轻的同时，能够增加飞行器的灵活性以及有效载荷，从而减少燃油消耗。

During the experiment, we choose Toyota Corona 1600cc as a test car and measure its maximal acceleration value by means of palm vibration noise analyzer, on conditions of the same tire pressure, speed, load, and road section and measure fuel consumption in a fixed speed and mileage. In addition, by using tire pressure gauge and infrared thermometer, measure after-driving tire pressure and tire temperature to make a comparative analysis. Finally, we use 185/60 R-14 Goodyear tire to measure tire sinkage in an empty car and a loaded car and obtain tire compression ratio to explain the difference of riding comfort and economical consideration of fuel consumption between nitrogen-filled tires and compressed air tires.

在实验时，采用丰田Corona 1600cc轿车，在相同的胎压、车速、负载、路段等条件下，透过掌上型振动噪音分析仪，撷取车辆行驶之最大峰值加速度；并在稳定车速及固定里程下量测汽油之消耗量，再以胎压表和红外线温度计，量取行驶后之胎压和胎温值来作比较分析，最后，再使用185/60 R-14 Goodyear 轮胎，在车上量测空车及负载下轮胎的下沉量，并求得轮胎的压缩率变化值，来说明氮气轮胎与一般压缩空气轮胎，在乘坐舒适性及燃油经济性上的差异原因。

This article probes into the definition of the main technology specifications, such as static tenaton and rope speed, rope Capacity, stpel rope, brake torque, Clean degtee, the ratio between drum diamter and rope dinmeter, the value of noise, machine life etc.

对运输绞车的主要技术参数：静张力、速、绳量、丝绳、动力矩、洁度、筒直径和钢丝绳直径之比、声值及整机寿命的确定进行了探讨。

Firstly,the general relation between radiated noise and surface vibration is established and the radiation ratio is discwsed.

首先阐明了发动机表面辐射嗓声和表面振动之何的关系并对辐射比进行了较为详细的讨论；而后通过实验研究了发动机各部件的表面振动特性。

Compared with traditional comparators, the proposed circuit has a better anti-noise character at the same resolution ratio.

同等分辨率下，其抗噪声能力远好于传统的比较器。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。