查询词典 Signal-to-Noise

Linear frequency-modulated signal that is often applied in radar, sonar and communications system is nonstationary signal, in which the frequency varies with time.

应用于雷达、声纳和通信等信息系统中的线性调频信号是非平稳信号，即频率成分是随时间变化的。

The UM2000 frequency shift signal is a multiple frequency-modulated signal, of which the frequency modulated constant is a key parameter.

UM2000移频信号是一个多频调制的调频信号，其中调频常数是一个关键的参数。

The received signal from target of linear frequency-modulated continues wave radar is a linear frequency-modulated signal.

线性调频连续波雷达对于匀速运动目标的回波经过混频以后还是一个线性调频信号。

Using time frequency analysis and image processing the modulation of linear frequency-modulated signal is analyzed and using relatively non-ambiguity phase revaluation technique, the modulation identification of phase-coded signal is also studied.

脉内调制特征中采用了时频分析方法和图像处理的方法分析了线性调频信号，采用相对相位无模糊的方法分析了相位编码信号。

The clamp gate input at pin 11 accepts a TTL level clamp signal for DC restoration during the back porch segment of the video signal.

在引脚11钳门输入，可在视频信号的后阳台部分为TTL电平直流恢复钳位信号。

A line which uses overlaps and has close headways could have a situation as shown here where the train in the overlaps of Signal A1 has a green signal showing behind it.

使用交叠和有接近的进展的线依照被显示能有情况这里何处火车在信号A1 交叠有一个绿色信号显示在它之后。

Line Out jack of the audio output signal without amplification for the access of active speakers or amplifiers; SPK socket built-in sound card output by the audio signal amplifier for the next speaker or passive speaker .

Line Out 插座输出未经放大的音频信号，用于接有源音箱或放大器； SPK 插座输出经声卡内置放大器放大的音频信号，用于接无源音箱或喇叭。

Among our Wireless Signal Jammers, the Mobile Phone Signal Jammer has been recognized as a famous brand in China mainland area, which has been widely used by more than ten of Chinese province and city examination departments with great reputation.

主要产品为：无线信号屏蔽器，其中手机信号屏蔽器在国内已成名牌产品，并已在全国十多个省、市的考试部门得到广泛应用并获得好评。

The return signal from propeller aircraft and jet plane in different SNR is simulated based on the statistic model of the disturbed clutter, and the calculated results are analyzed and compared. The results show that the model presented is valid and provides a useful simulated signal for the radar system.

根据给定的目标建模算法和干扰反射杂波模型，模拟了不同信杂比下螺旋桨飞机和喷气式飞机的雷达回波，仿真结果表明，这两种目标具有不同的频谱结构，证明了给出的模型是有效的，为雷达系统提供了实用的回波仿真信号。

Keywords: Promoting of signal linearity;Signal transfer function;Inverse function;Equation of broken line

此方法在笔者研制开发的&YWS96-B型烟叶复烤机控制系统&上进行了实践和验证，收到较好的效果。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。