The importance and necessity of emulating the federation load during simulating was analyzed firstly.Then,the special federation load emulation tool,federation load simulator (FLS),was designed and implemented,by whic...The importance and necessity of emulating the federation load during simulating was analyzed firstly.Then,the special federation load emulation tool,federation load simulator (FLS),was designed and implemented,by which all of the vital essential characteristics of a simulation could be tested,e.g.the amount of federates,the joint/resigned speed of federate,the amount of object instances,the registered/deleted speed of instance in one single program,etc..The applications proved that FLS could provide a convenient,effective and adjustable simulation load testing environment during the procedure of run-time infrastructure(RTI)and interrelated tool federates researching,developing and performance testing.Furthermore,the FLS utilized all kinds of resources with high efficiency.展开更多
Unpredicted load behaviour troubles traditional power system and becomes a main unstable factor.This paper pro-poses a digitalized power system based on synthetical transmission carrier which makes the power system al...Unpredicted load behaviour troubles traditional power system and becomes a main unstable factor.This paper pro-poses a digitalized power system based on synthetical transmission carrier which makes the power system also serves as a data communication system with the same structure.Loads get authorized before powered on,so their behaviour is predictable.Digitalized power system includes such basic units as digital power source,hub and load.Their concepts are explained,their behaviour and implements are also described in detail.Real time distribution of residual power is applied,which makes prompt authorization possible.Communication protocol and load address assignments are also presented in this paper.A prototype is built and the results verify the effect of the new proposed power system.展开更多
Satellite disciplined clock system(SDCS)composed of satellite timing receiver and local frequency synthesis is widely applied for its high accuracy and low cost.This paper provides a review of SDCS.Key technologies su...Satellite disciplined clock system(SDCS)composed of satellite timing receiver and local frequency synthesis is widely applied for its high accuracy and low cost.This paper provides a review of SDCS.Key technologies such as phase difference measurement,pulse noise process and frequency calibration are surveyed in detail.Disciplined clock model based on PI controller is built and disciplined process is analyzed.The methods of realizing the disciplined clock circuit are classified and summarized.A prototype based on FPGA is proposed.At last development trend of SDCS is discussed.展开更多
文摘The importance and necessity of emulating the federation load during simulating was analyzed firstly.Then,the special federation load emulation tool,federation load simulator (FLS),was designed and implemented,by which all of the vital essential characteristics of a simulation could be tested,e.g.the amount of federates,the joint/resigned speed of federate,the amount of object instances,the registered/deleted speed of instance in one single program,etc..The applications proved that FLS could provide a convenient,effective and adjustable simulation load testing environment during the procedure of run-time infrastructure(RTI)and interrelated tool federates researching,developing and performance testing.Furthermore,the FLS utilized all kinds of resources with high efficiency.
文摘Unpredicted load behaviour troubles traditional power system and becomes a main unstable factor.This paper pro-poses a digitalized power system based on synthetical transmission carrier which makes the power system also serves as a data communication system with the same structure.Loads get authorized before powered on,so their behaviour is predictable.Digitalized power system includes such basic units as digital power source,hub and load.Their concepts are explained,their behaviour and implements are also described in detail.Real time distribution of residual power is applied,which makes prompt authorization possible.Communication protocol and load address assignments are also presented in this paper.A prototype is built and the results verify the effect of the new proposed power system.
文摘Satellite disciplined clock system(SDCS)composed of satellite timing receiver and local frequency synthesis is widely applied for its high accuracy and low cost.This paper provides a review of SDCS.Key technologies such as phase difference measurement,pulse noise process and frequency calibration are surveyed in detail.Disciplined clock model based on PI controller is built and disciplined process is analyzed.The methods of realizing the disciplined clock circuit are classified and summarized.A prototype based on FPGA is proposed.At last development trend of SDCS is discussed.
