水和脂肪的分离图像的形成方法,磁共振成像设备,参考峰的相位测定方法和参考峰的位置测定方法。
Water and fat separated image-forming method, magnetic resonance imaging apparatus, reference peak phase detection method thereof.
如何精确而又方便地测定晶体的相位延迟量一直受到人们的关注。
How to determine the phase retardation of crystal precisely and conveniently has continuously been paid attention to.
为了方便教学,对用共振干涉法和相位比较法测定超声声速的原理进行了剖析、比。
The principles used in measuring sound velocity by means of resonant interference and phase comparison are analyzed and compared, which are convenient for teaching.
埋藏在噪声中的正弦波,利用相关技术进行检测,能够测定信号的大小和相位。
Using correlative technique to detect the sine wave in yawp is a good method for picking up certain signal from yawp jam, which can determine the size and phase of signal.
介绍了一台自制的利用相位差法测量光速的仪器的基本原理和方法,并通过对光在空气中的传播速度的测定,使大家对用相位变化测量光速仪器有所了解。
This article introduced the basic theory and method of measuring the velocity of light using the method of phase difference and how to measure the velocity of light using phase difference in air.
方法:用磁共振相位对比电影法测定模拟脑血液流动的管状模型稳态流动下流体信号强度,并与相应的速率进行相关性分析后分别得出相应的转换函数关系。
Methods: tube flow phantoms which simulating the cerebral blood flow were established. Flow signal intensity of the steady flow in tubes was measured by MR phase-contrast cine technique.
动目标的真实方位由相位比较干涉仪测定。
True azimuth of moving target is determined using phase-comparison interferometer.
为此,提出一种利用空频域信息的固定单站无源探测定位方法,利用波达方向、相位差变化率、载波频率及多普勒频率变化率实现对运动目标的无源定位。
Therefor, a single observer passive location method was proposed by using direction of arrival, phase difference rate-of-change, frequency and Doppler frequency rate-of-change in this paper.
为此,提出一种利用空频域信息的固定单站无源探测定位方法,利用波达方向、相位差变化率、载波频率及多普勒频率变化率实现对运动目标的无源定位。
Therefor, a single observer passive location method was proposed by using direction of arrival, phase difference rate-of-change, frequency and Doppler frequency rate-of-change in this paper.
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