搜索结果: 1-15 共查到“工学 Frequency”相关记录303条 . 查询时间(0.234 秒)
Quantum sensors, which detect the most minute variations in magnetic or electrical fields, have enabled precision measurements in materials science and fundamental physics. But these sensors have only...
长安大学电子与控制工程学院自动控制原理英文课件Chapter 09 Stability in the Frequency Domain
长安大学电子与控制工程学院 自动控制原理 英文课件 Stability Frequency Domain
2020/1/8
长安大学电子与控制工程学院自动控制原理英文课件Chapter 09 Stability in the Frequency Domain。
长安大学电子与控制工程学院自动控制原理英文课件Chapter 08 The Frequency Response Method
长安大学电子与控制工程学院 自动控制原理 英文课件 Frequency Response Method
2020/1/8
长安大学电子与控制工程学院自动控制原理英文课件Chapter 08 The Frequency Response Method。
西安电子科技大学高频电子线路课件chapter10 Integer-N Frequency Synthesizers
西安电子科技大学 高频电子线路 课件 chapter10 nteger-N Frequency Synthesizers
2019/4/26
西安电子科技大学高频电子线路课件chapter10 Integer-N Frequency Synthesizers。
RADAR CROSS SECTION CHARACTERIZATION OF CORNER REFLECTORS IN DIFFERENT FREQUENCY BANDS AND POLARIZATIONS
Corner Reflector Radar Cross Section Trihedral Dihedral Compact Antenna Test Range Facility Calibration
2019/2/28
Corner Reflectors (CR) are standard passive radar targets which offer one of the best solutions for SAR calibration. Radar Cross Section (RCS) of corner reflectors plays a vital role for estimation of...
High-Frequency Chip Brings Researchers Closer to Next Generation Technology（图）
high-frequency chip researchers next generation technology
2017/9/5
A novel, high-frequency electronic chip potentially capable of transmitting tens of gigabits of data per second — a rate that is orders of magnitude above the fastest internet speeds available today —...
AN ATTITUDE MODELLING METHOD BASED ON THE INHERENT FREQUENCY OF A SATELLITE PLATFORM
Satellite Attitude Post-Process AttModel FFT Inherent Frequency
2017/7/12
The accuracy of attitude determination plays a key role in the improvement of surveying and mapping accuracy for high-resolution remote-sensing satellites, and it is a bottleneck in large-scale satell...
New Design Results in Compact,Highly Efficient Frequency Comb
New Design Results Compact Highly Efficient Frequency Comb
2017/3/30
Northwestern Engineering researchers have designed a quantum cascade laser (QCL) frequency comb that is dramatically more efficient than previous iterations. Led by Manijeh Razeghi, researchers i...
Validating polyphenol intake estimates from a food-frequency questionnaire by using repeated 24-h dietary recalls and a unique method-of-triads approach with 2 biomarkers
Adventist Health Study method of triads phytochemicals polyphenols urinary polyphenols
2018/11/13
Background: The assessment of polyphenol intake in free-living subjects is challenging, mostly because of the difficulty in accurately measuring phenolic content and the wide presence of phenolics in ...
Frequency analysis of noise exposure of dairy cows in the process of milking
hearing sensitivity welfare cattle milk production milking parlour
2016/12/9
In the environment of farms and farm buildings, cattle are exposed to various unnatural influences. Such an impact is also noise always arising with a certain energy conversion. In cattle farms, the s...
MONITORING HIGH-FREQUENCY OCEAN SIGNALS USING LOW-COST GNSS/IMU BUOYS
Global Navigation Satellite System (GNSS) buoys Inertial Measurement Unit (IMU) tide gauge
2016/12/1
In oceans there are different ocean signals covering the multi-frequencies including tsunami, meteotsunami, storm surge, as sea level change, and currents. These signals have the direct and significan...
ANOMALY IDENTIFICATION FROM SUPER-LOW FREQUENCY ELECTROMAGNETIC DATA FOR THE COALBED METHANE DETECTION
Electromagnetic Super Low Frequency Coalbed Methane non-Gaussian Class B model Least Square Gradient Adaptive filter
2016/11/30
Natural source Super Low Frequency(SLF) electromagnetic prospecting methods have become an increasingly promising way in the resource detection. The capacity estimation of the reservoirs is of great i...
COMPENSATION LOW-FREQUENCY ERRORS IN TH-1 SATELLITE
Satellite photogrammetry Low-frequency errors Attitude determination system Exterior orientation elements Location accuracy Global coverage
2016/7/4
The topographic mapping products at 1:50,000 scale can be realized using satellite photogrammetry without ground control points (GCPs), which requires the high accuracy of exterior orientation element...
LOW FREQUENCY ERROR ANALYSIS AND CALIBRATION FOR HIGH-RESOLUTION OPTICAL SATELLITE’S UNCONTROLLED GEOMETRIC POSITIONING
high-resolution optical satellite low frequency error star sensor uncontrolled geometric positioning
2016/7/4
The low frequency error is a key factor which has affected uncontrolled geometry processing accuracy of the high-resolution optical image. To guarantee the geometric quality of imagery, this paper pre...
TV BROADCASTING FREQUENCY PROGRAMMING BASED ON GIS
Shoreline Frequency Programming Spatial Analysis Spatial Visualization Data Integration Model Assistant Decision-making
2016/3/17
In recently years, GIS has a high-speed development and has made a great progress in its own field. This paper applies theory and method of geographic information system to TV Broadcasting frequency p...