In1943, Carl Zeiss also developed a procedure to measure lens imagequality with so-called “MTF” curves (modulation transfer function), which numerous manufacturers today use for quality control.
1943年卡尔蔡司同样研发了一套利用MTF（调制传递函数）
Here we analyzed the quality property, modulation manner and identification of various kind of transmitter with several practical application cases.
分析各类光发射机的鉴别、调制方式和质量指标特性，并举出实际应用事例。
Modulation transfer function can be used for evaluating the quality of optical pictorial transfer in optical systems.
光学图像在光学系统中传递的质量可以用调制传递函数评价。
Since atmosphere signal path has a great influence on the laser atmosphere communication quality, a Photo-electrical PPM Polarization Modulation system is designed.
针对大气信道对大气激光通信的质量有很大影响，设计了一种光电复合的光ppm偏振调制硬件系统。
AM radio can be sent over larger distances, but the quality of the sound is not as good as a later kind of radio signal processing, called frequency modulation.
调幅广播可以发送更远的距离，但它的声音质量却不及后来一种被称为频率调制的无线电信号处理方式优越。
The results show that Fourier Series Smoothing method is not only an efficient method, but also is easy to estimate image quality using modulation transfer function.
试验结果表明：付立叶级数滤波法是一种行之有效的方法，并便利于用调制传递函数评价影象质量。
The key technology in it, such as interference discrimination, self-adaptive modulation strategy and channel quality estimation are discussed in this paper particularly.
对其中的关键技术：干扰辨识、自适应调制策略和信道质量估计进行了详细的讨论。
Precise modulation, vivid color reproduction and excellent image quality make this the outstanding film for nature, fashion, products, interiors, and artwork photography.
精确的影调，逼真的色彩再现及出色的影像质量使该胶卷适于自然、流行时尚、产品、室内、艺术摄影。
Signal modulation is the last physical part of DTV Front-End, which directly determines the quality of network transmission.
信号调制是数字电视前端最后的一个物理环节，直接决定信号在网络中传输的质量。
With vision noise added to the stimulus pictures, the quality of perception decreased, the mental rotation process postponed, and the onset of the amplitude modulation was delayed.
刺激图片加入视觉干扰后，知觉质量下降，心理旋转加工推后，波幅调制的起始时刻推后。
At last, it is presented that image quality assessment method combined modulation transfer function (MTF) with human visual system (HVS) may be a new breakthrough to solve the image quality problem.
文章最后指出基于调制传递函数(MTF)测定并结合人眼视觉系统(HVS)模型的影像质量评价方法有望成为解决影像质量评价难题的突破点。
GMSK modulation technology is used to improve spectrum utilization and communication quality.
利用GMSK调制技术提高了频谱利用率和通信质量。
The FPGA technology was used to achieve an improved control of grayscale PWM modulation. It can reduce the loss of FED grayscale images and improve image display quality.
采用FPGA控制技术实现了改进型pwm灰度调制，减少了FED图像灰阶损失，提高了图像显示质量。
All axis adopt high quality parts are all 45 steel modulation processing and processed.
所有轴类零部件均采用优质45号钢材调制处理加工而成。
In order to cut down the power consumption of LCD backlight and maintain the image quality, a modulation algorithm that based on hierarchical tone mapping for LED backlight is proposed.
为了节省液晶显示器背光功耗的同时保持图像质量，提出了基于分层色调映射的LED背光调制算法。
The feasibility of MTFA (modulation transfer function area) for assessing imaging quality of visual telescopic systems is described.
本文论述了用调制传递函数面积值（简称MTFA）评价望远系统象质的适用性；
RN32 is the use of high-quality base oil, joined the amount of rust, antioxidant, anti-wear additive modulation and.
RN32是利用优质基础油，加进适量的防锈、抗氧、抗磨等添加剂调制而成。
Influenced by joining the primary frequency modulation and the coal quality variation, the new problems were faced to the large generating sets steam temperature control.
受参与一次调频和煤质波动的影响，大型机组汽温控制面临新的考验。
RN46 is the use of high-quality base oil, joined the amount of rust, antioxidant, anti-wear additive modulation and.
RN46是利用优质基础油，加进适量的防锈、抗氧、抗磨等添加剂调制而成。
Optic-fiber sensor on refractive index modulation can be applied to measure the steam quality in the process of viscous oil heating recovery.
折射率调制的光纤传感器可用于测量稠油热采过程中的蒸汽干度测量。
The Modulation Transfer Function(MTF) and the geometric blur spot show the perfect image quality of the projection optics.
最后分析了光学系统性能参数与指标要求的符合。
The Modulation Transfer Function(MTF) and the geometric blur spot show the perfect image quality of the projection optics.
最后分析了光学系统性能参数与指标要求的符合。
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