查询词典 noise equivalent

Both the mathematical mode of noise equivalent temperature difference and the noise equivalent eradiation difference are established for micro thermal imaging systems.

研究了显微热成像系统的噪声等效温差和噪声等效辐射率差模型，分析了显微热成像与望远模式热成像的差异。

Micro thermal imaging ; noise equivalent temperature difference ; mathematical model ; noise equivalent eradiation difference

显微热成像；噪声等效温差；数学模型；噪声等效辐射率差

The test result showed that the preamplifier could work at the temperature of 100K, its feedback resistance was about 10^6Ω, the equivalent input noise current was 0.03pA/Hz(superscript 1/2) and the power consumption of one cell was less than 1mW. This preamplifier could work well when connected with JR detectors, and the system had good linearity.

经测试，这种前置放大器在深低温下能正常工作，反馈电阻大小为兆欧级，等效输入噪声电流仅0.03pA/Hz(上标 1/2)，单元功耗小于1mW，与红外探测器连接后工作正常，线性度较好。

First, a mathematic model for laser diode with a cool is established, which is looked as a first order segment of inertia in theory. It analyzes the step response in the S field and the time field separately after adopting PID control technique, and it also analyzes the equivalent noise model of the amplifying circuit.

首先从理论上对带制冷的半导体激光器组件建立了数学模型，将其看作一阶惯性环节，分别在S域和时域里详细分析了采用PID控制技术后的阶跃响应；同时也对光接收机放大电路等效噪声模型进行分析。

A model of an additive mixture of Gaussian and non-Gaussian impulsive noise is adopted, and the asymptotical solution of the closed-form expression for the average symbol error rate of orthogonal space-time block coding over Rayleigh flat fading channel is derived by means of the Moment Generating Function with the approximate equivalent Multiple-Input Single-Output model of mixture noise.

采用脉冲和高斯加性混合噪声模型，利用矩母函数分析方法，通过建立多发单收近似等效模型，推导出Rayleigh衰落信道下MISO空时分组码误符号率闭式表达式的渐近解。

So its fill factor and responsively is high, but noise equivalent temperature difference is low.

另外，针对热电偶材料选择及结构设计部份做相关公式的计算仿真，由理论分析找出一组较具代表性的感测器性能规格。

According to the practical observation method of road traffic noise and by using the micro traffic flow theory, a dynamic and stochastic model, which can predict equivalent noise level and statistical noise levels from complex vehicle flow on a multi-lanes road, is established in this paper.

本文根据我国道路交通噪声的实际观测方法，通过引入微观交通流理论，建立了一种可用于多车道混合车流等效声级和统计声级预测的动态随机模型。

This article increase stationing measure in noise monitor and valuate, the effect of noise between department. To investigate the valuator, to conbine the subject valuate and equivalent continuous sound pressure level method. Study the different noise rating number between the different time and the real effection of our feeling between different types of noise.

本文在噪声监测与评价上增加了对楼栋内的布点测量，评价噪声对宿舍楼的影响；对评价者进行调查，将主观评价方法和等效连续声级结合起来应用到评价中，研究同水平的噪声值由于所处时段的差异对应人们感觉的不同以及不同类型噪声的大小与对人们的实际影响的关系。

This expression may be used as an indirect testing method of noise equivalent bandpass .

该表达式可用作噪声等效带宽的一种间接测试方法。

Computation of Noise Equivalent Bandpass of Infrared Imaging System with NETD and Test Data of Detector.

利用NETD 和探测器测试数据计算红外成像系统的噪声等效带宽。

It goes back to what I told you...

现在回到我告诉过你的。。。

With a supporter in Mr Charest and an admirer in Mr Dumont, Mr Harper may be encouraged to call an election himself.

由于在沙雷那边有个支持者，杜蒙那边有个崇拜者，鼓励哈珀为自己举行一次选举。