Joint time Frequency Analysis (JTFA) describes and determines how the frequencies of non stationary signals change over time. It offers a better understanding of nature of the signal.
时-频联合信号分析法能描述非稳态信号的频率如何随时间而变化，故它能使我们更好地理解信号的本质。
The thesis is the technical improvement of existing Signal Transmission System of Rotary joint Component in Vehicle.
论文是对现有军事车辆旋转连接部件综合信号传输系统的技术改进。
Joint time frequency analysis method is a powerful tool for study of this kind of signal.
联合时频分析的方法是研究这类信号的有力工具。
Joint time-frequency analysis is an important tool in seismic signal processing. With various realizations, this method is widely used in seismic prospecting.
联合时频分析是地震信号处理的一种重要分析工具，方法很多，应用广泛。
The robust control method based on signal compensation is applied to design controllers for each joint subsystem.
将利用基于信号补偿的鲁棒控制方法设计机器人的子关节系统控制器。
PURPOSE:To investigate the relationship between condylar marrow signal abnormalities and joint pain.
目的：探讨髁突骨髓腔信号异常与关节疼痛的关系。
The method based on joint parameter estimation shows preferable performance almost at all times, in cases of various number of targets and various type of signal envelope.
基于参数联合估计的多目标定位方法在不同目标数目、不同信号包络的定位实验中都有较好的表现。
Objective To investigate the relationship between condylar marrow signal abnormalities and temporomandibular joint internal derangement (TMJID).
目的探讨髁突髓腔信号异常与颞下颌关节内紊乱(TMJID)的关系。
Based on joint time and frequency offset estimation, a reliable signal detection scheme is obtained by modulated pilot symbols using an m-sequence.
方案利用时频联合估计来得到可靠的信号检测，并从导频符号估计时间和频率偏移。
Generalized into local frequency from integral frequency, the method of joint time-frequency distribution effectively analyzes the signal based on the variation of frequency with time.
联合时频分布方法把整体频谱推广到局部频率，根据频率随着时间的变化情况，对信号进行有效的分析。
In this paper, a new cumulants-based method for the joint estimations of frequency and DOA of spatial signal was discussed.
提出了一种基于频域高阶累积量的信号频率和到达角联合估计算法。
It is established on the expected value of the theoretical spatial spectrum over the joint posterior density function of the array output signal and noise parameters.
它是建立在阵列输出信号和噪声参数联合后验概率密度基础上的空间谱估计。
The result of experiment shows that the property of correlating output signal and the joint correlation recognition ability is improved by this system.
理论分析和实验结果表明，该方法能够抑制低频成分，改善相关输出信号的性能，提高系统的相关识别能力。
One of the key technologies of implantable electric joint system is transcutaneous transmission of power for motor drive and signal for motor control.
植入式电动关节的关键技术之一是电机驱动能量和控制信号的经皮传输。
The well-logging signal pretreatment is the first requirement for the sake of a better joint inversion of seismic and well-logging data.
为了更好地进行地震测井联合反演，必须首先对测井信号进行预处理，而在此过程中测井信号去噪和测井低频信息提取是非常重要的。
Based on the analysis, a new method to detect carrier frequency of FSK signal named time-domain joint and modern power spectrum estimation is put forward.
对电力远动通道FSK信号进行了时域和频域分析，在此基础上提出了一种新的FSK信号载波频率测量方法—时域拼接结合现代功率谱估计的方法。
A fiber swivel joint data transmission technology is described. The data transmission of TV signal with fiber is realized with EPLD large-scale programmer.
介绍了一种光纤旋转接头的数据传输技术，并利用EPLD大规模可编程器件实现了光纤中电视信号的数据传输。
In the evaluation of welded joint using digital ultrasonic system, it is found that it is noise that constitutes the main difficulty in the detection of weak ultrasonic signal.
在用数字超声系统进行焊接接头评价时发现，噪声是微弱超声信号检测的主要障碍。
Starting from the precise pair-wise error probability (PEP), the joint border of group coding signal error probability (SEP) in differential unitary space-time (DUST) modulation is deduced.
从精确成对错误概率(PEP)出发，推导得到了DUST调制群码符号误码率(sep)的联合边界。
The notion of joint spectrum in polarizational and spatial domains is proposed for the first time, which can depict the EM signal completely.
首次提出极化域—空域联合谱的概念，拓广了电磁波特征参量的谱描述方法。
This method analyzes VHF and UHF signal of detected cable joint, using time and frequency analysis. This method can be used for detecting PD pulse inside or outside the insulating joint.
该法对电缆绝缘接头处VHF和UHF信号的时域和频域分析可有效地识别被测电缆绝缘接头部内、外部的局放信号。
Aiming at the 3-d laser measurement system and the joint-type measurement system, the paper put forward the technology of tracking measurement based on pre-scanning and signal separately.
并针对三维激光测量系统和关节式测量系统，分别提出了预扫描的随动测量技术和信号跟踪算法的随动测量技术。
The simulation results show that, ICA as the post-processing modules of Joint detection, in the circumstances of high signal to noise ratio, the performance of the system was improved.
仿真结果表明，把联合检测后的数据再次经过ICA后处理模块，在高信噪比的情况下系统的性能有明显的提高。
Proposed a new mixed-signal blind sound source separation method: This method is based on joint probability distribution of signal statistics!
从盲声源信号的独立性出发！提出了一种新的盲声源混合信号分离方法：该方法基于信号联合概率的分布统计！
Small solid solder joint, electrical conductivity, and no signal attenuation, when subjected to high temperature and low temperature will not fall off.
焊点细小牢靠、导电性好、无讯号衰减，在经受高温和低温时不会脱落。
Small solid solder joint, electrical conductivity, and no signal attenuation, when subjected to high temperature and low temperature will not fall off.
焊点细小牢靠、导电性好、无讯号衰减，在经受高温和低温时不会脱落。
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