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BeiDou navigation satellite system 4

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microwave remote sensing 3

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Consistency of MGEX Orbit and Clock Products Article

Peter Steigenberger, Oliver Montenbruck

Engineering 2020, Volume 6, Issue 8, Pages 898-903 doi: 10.1016/j.eng.2019.12.005

Abstract: analysis centers of the Multi-GNSS Pilot Project of the International GNSS Service provide orbit and clockproducts for the global navigation satellite systems (GNSSs) Global Positioning System (GPS), GLONASS, Galileo, and BeiDou, as well as for the Japanese regional Quasi-Zenith Satellite System (QZSS).The clock consistency is about 2 cm for GPS, 5 cm for GLONASS and Galileo, and 10 cm for BeiDou-2.

Keywords： Global navigation satellite system International GNSS Service Multi-GNSS Pilot Project Precise orbitdetermination Satellite clock parameters

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Two Ways Pseudo Range Time Synchronization for Navigation Satellite Clock

Tan Shusen

Strategic Study of CAE 2006, Volume 8, Issue 12, Pages 70-74

Abstract:

Aiming at the demand of time synchronization, the navigation satellite two-way clock pseudo rangeComparing with other navigation satellite clock synchronization ways, this way was provided with advantagesclock were discussed.The error of the navigation satellite clock synchronization affects users' position and precisionThe difference between them is clock bias.

Keywords： navigation satellite pseudo range time synchronization

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A composite optimization method for separation parameters of large-eccentricity pico-satellites None

Lai TENG, Zhong-he JIN

Frontiers of Information Technology & Electronic Engineering 2018, Volume 19, Issue 5, Pages 685-698 doi: 10.1631/FITEE.1700416

Abstract: A spacecraft’s separation parameters directly affect its flying trace.If the parameters exceed their limits, it will be difficult to adjust the flying attitude of the spacecraftcomposite optimization method, which combines angular velocities with external moments for separation parametersSimulation and test results show that the optimization method can effectively optimize the separation parametersThe proposed method adapts particularly to the fixed and non-stable status elastic parameters, the distribution

Keywords： Pico-satellite Satellite–rocket separation mechanism Separation parameters Parameter optimization

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Satellite scheduling engine: The intelligent solver for future multi-satellite management

Frontiers of Engineering Management 2022, Volume 9, Issue 4, Pages 683-688 doi: 10.1007/s42524-022-0222-4

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Wide-range tracking technique for process-variation-robust clock and data recovery applications Article

Jun-sheng LV, You LI, Yu-mei ZHOU, Jian-zhong ZHAO, Hai-hua SHEN, Feng ZHANG

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 5, Pages 729-737 doi: 10.1631/FITEE.1500410

Abstract: A wide-range tracking technique for clock and data recovery (CDR) circuit is presented.

Keywords： Clock and data recovery Digital loop filter Phase interpolator

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The Polar Orbit Meteorological Satellite in China

Meng Zhizhong

Strategic Study of CAE 2004, Volume 6, Issue 10, Pages 1-5

Abstract:

Meteorological satellite is one kind of applied satellite that has tremendous benefit to both economicThe development of polar orbit meteorological satellite in China has experienced the processes from experimentThis paper introduces briefly the development and performance of the FY-1 polar meteorological satelliteMoreover, the general information of the new generation polar FY-3 meteorological satellite is presentedThe technology specialty of the satellite is summarized.

Keywords： polar orbit meteorological satellite FY-1 satellite FY-3 satellite

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The Thinking Concerning Technique Way of China’s Satellite Engineering

Ye Peijian

Strategic Study of CAE 2001, Volume 3, Issue 9, Pages 16-20

Abstract: In the next 20 years, application satellite and satellite application is still the dominant field inT6 build-up some application satellite systems for long-term stable operation is the main target amongThe application satellite will be the base of such systems.Satellite engineering design has to be done from top level with considering simultaneously the largeSo the satellite products can be obtained with a faster, better and more e-conomic results.

Keywords： space exploitation application satellite satellite application satellite-bus

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High resolution satellite imaging sensors for precision agriculture

Chenghai YANG

Frontiers of Agricultural Science and Engineering 2018, Volume 5, Issue 4, Pages 393-405 doi: 10.15302/J-FASE-2018226

Abstract: Recent developments in high resolution satellite sensors have significantly narrowed the gap in spatialresolution between satellite imagery and airborne imagery.Since the first high resolution satellite sensor IKONOS was launched in 1999, numerous commercial highresolution satellite sensors have become available.This article will provide an overview of commercially available high resolution satellite sensors that

Keywords： high resolution satellite sensor multispectral imagery precision agriculture spatial resolution temporal

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General modeling and optimization technique for real-world earth observation satellite scheduling

Frontiers of Engineering Management Pages 695-709 doi: 10.1007/s42524-023-0263-3

Abstract: last two decades, many modeling and optimization techniques have been developed for earth observation satellite

Keywords： earth observation satellite scheduling general technique optimization algorithm commercial constellation

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Power-efficient dual-edge implicit pulse-triggered flip-flop with an embedded clock-gating scheme Article

Liang GENG,Ji-zhong SHEN,Cong-yuan XU

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 9, Pages 962-972 doi: 10.1631/FITEE.1500293

Abstract: A novel dual-edge implicit pulse-triggered flip-flop with an embedded clock-gating scheme (DIFF-CGS)is proposed, which employs a transmission-gate-logic (TGL) based clock-gating scheme in the pulse generationdisables the inverter chain when the input data are kept unchanged, so redundant transitions of delayed clock

Keywords： Low power Flip-flop Implicit Clock-gating scheme Dual-edge

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Design and simulation of a standing wave oscillator based PLL

Wei ZHANG,You-de HU,Li-rong ZHENG

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 3, Pages 258-264 doi: 10.1631/FITEE.1500210

Abstract: A standing wave oscillator (SWO) is a perfect clock source which can be used to produce a high frequencyclock signal with a low skew and high reliability.This PLL can be used not only as a clock source, but also as a clock distribution network to providehigh quality clock signals.

Keywords： Standing wave oscillator (SWO) Clock distribution Phase locked loop (PLL) Varactor

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Inverse identification of the mechanical parameters of a pipeline hoop and analysis of the effect of

Ye GAO, Wei SUN

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 3, Pages 358-368 doi: 10.1007/s11465-019-0539-9

Abstract: pipeline system effectively and analyze its vibration characteristics, the mechanical characteristic parametersThe procedure of identifying such parameters was described based on the measured natural frequenciesA case study was performed, and the mechanical parameters of the hoop were identified using the proposed

Keywords： inverse identification pipeline hoop frequency response function mechanical parameters preload

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Study on retrieval algorithm of ocean parameters for the HY-2 scanning microwave radiometer

Wang Zhenzhan,Bao Jinghua,Li Yun,Shen Hua

Strategic Study of CAE 2014, Volume 16, Issue 6, Pages 70-82

Abstract: And then we used on-orbit data to retrieve these parameters.speed shows that the algorithm is feasible and reasonable，which can retrieve the atmospheric and ocean parametersCurrently，the validation of other parameters is still going on.

Keywords： HY-2 satellite scanning microwave radiometer ocean parameter retrieval algorithm

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Impact of anthropogenic heat emissions on meteorological parameters and air quality in Beijing using

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 4, doi: 10.1007/s11783-021-1478-3

Abstract:

The Large scale Urban Consumption of energ Y model was updated and coupled with WRF.

Keywords： Anthropogenic heat emissions LUCY High-resolution Meteorological parameters Air quality

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Effect of thermodynamic parameters on the performance of refrigerator-ejector

Lihong CAO, Yicai LIU, Chao WAN, Tianlong XIN, Qian HUANG, Mingyan ZHANG

Frontiers in Energy 2010, Volume 4, Issue 4, Pages 517-521 doi: 10.1007/s11708-010-0004-2

Abstract: The effect of thermodynamic parameters (the pressure of primary fluid and secondary fluid) on the performanceThe boundary conditions were set according to the actual operating condition and the parameters of refrigerator

Keywords： refrigerator-ejector FLUENT thermodynamic parameters entrainment ratio performance