02908oam 2200697 450 991071525120332120210624142857.0(CKB)5470000002509512(OCoLC)1232472647(EXLCZ)99547000000250951220210125d2021 ua 0engurbn||||a||||txtrdacontentcrdamediacrrdacarrierAmending Executive Order 13959--addressing the threat from securities investments that finance communist Chinese military companies communication from the President of the United States, transmitting an executive order that takes additional steps with respect to the national emergency declared in Executive Order 13959 of November 12, 2020, pursuant to 50 U.S.C. 1703(b); Public law 95-223, Sec. 204(b); (91 Stat. 1627) and 50 U.S.C. 1641(b); Public law 94-412, Sec. 401(b); (90 Stat. 1257)Washington :U.S. Government Publishing Office,2021.1 online resource (4 pages)House document / 117th Congress, 1st session ;117-8"Referred jointly to the Committees on Foreign Affairs and Financial Services.""January 15, 2021."Amending Executive Order 13959--addressing the threat from securities investments that finance communist Chinese military companies National securityUnited StatesInvestments, ChineseUnited StatesPreventionStock exchangesUnited StatesArmed ForcesFinancefastDiplomatic relationsfastNational securityfastStock exchangesfastChinaArmed ForcesFinanceUnited StatesForeign relationsChinaChinaForeign relationsUnited StatesChinafastUnited StatesfastLegislative materials.fastLegislative materials.lcgftNational securityInvestments, ChinesePrevention.Stock exchangesArmed ForcesFinance.Diplomatic relations.National security.Stock exchanges.Trump Donald1946-United States.Congress.House.Committee on Foreign Affairs,United States.Congress.House.Committee on Financial Services,GPOGPOGPOHULGPOOCLCOOCLCFGPOOCLCOGPOBOOK9910715251203321Amending Executive Order 13959--addressing the threat from securities investments that finance communist Chinese military companies3480937UNINA05524nam 22007214a 450 991102000350332120200520144314.097866102532899781280253287128025328297804702319200470231920978047172130704717213019780471721314047172131X(CKB)1000000000019090(EBL)226450(OCoLC)181837752(SSID)ssj0000104000(PQKBManifestationID)11117028(PQKBTitleCode)TC0000104000(PQKBWorkID)10079469(PQKB)10292007(MiAaPQ)EBC226450(Perlego)2750876(EXLCZ)99100000000001909020030326d2003 uy 0engur|n|---|||||txtccrAntenna arraying techniques in the Deep Space Network /David H. Rogstad, Alexander Mileant, Timothy T. PhamHoboken, NJ J. Wiley-Intersciencec20031 online resource (182 p.)Deep-space communications and navigation seriesDescription based upon print version of record.9780471467991 0471467995 Includes bibliographical references and index.Antenna Arraying Techniques in the Deep Space Network; Table of Contents; Foreword; Preface; Acknowledgments; Chapter 1: Introduction; 1.1 Benefits of Arraying; 1.1.1 Performance Benefits; 1.1.2 Operability Benefits; 1.1.3 Cost Benefits; 1.1.4 Flexibility Benefits; 1.1.5 Science Benefits; References; Chapter 2: Background of Arraying in the Deep Space Network; 2.1 Early Development; 2.2 Current Status of Development; 2.3 Anticipated Applications with Current Capabilities; References; Chapter 3: Arraying Concepts; 3.1 An Array as an Interferometer; 3.2 Detectability3.3 Gain Limits for an Antenna and Array3.4 System Temperature; 3.5 Reliability and Availability; References; Chapter 4: Overview of Arraying Techniques; 4.1 Full-Spectrum Combining (FSC); 4.2 Complex-Symbol Combining (CSC); 4.3 Symbol-Stream Combining (SSC); 4.4 Baseband Combining (BC); 4.5 Carrier Arraying (CA); References; Chapter 5: Single-Receiver Performance; 5.1 Basic Equations; 5.2 Degradation and Loss; References; Chapter 6: Arraying Techniques; 6.1 Full-Spectrum Combining (FSC); 6.1.1 Telemetry Performance; 6.2 Complex-Symbol Combining (CSC); 6.2.1 Telemetry Performance6.3 Symbol-Stream Combining (SSC)6.4 Baseband Combining (BC); 6.5 Carrier Arraying (CA); 6.5.1 Baseband Carrier-Arraying Scheme; 6.5.2 IF Carrier-Arraying Scheme; References; Chapter 7: Arraying Combinations and Comparisons; 7.1 Arraying Combinations; 7.2 Numerical Examples; 7.2.1 Pioneer 10; 7.2.2 Voyager II; 7.2.3 Magellan; 7.2.4 Galileo; 7.3 Conclusions; Reference; Chapter 8: Correlation Algorithms; 8.1 General; 8.2 Simple; 8.3 Sumple; 8.4 Eigen; 8.5 Least-Squares; 8.6 Simulations; References; Chapter 9: Current Arraying Capability; 9.1 Equipment Description; 9.2 Signal Processing9.2.1 Correlation9.2.2 Delay Compensation; 9.2.3 Combining; 9.3 Results; 9.3.1 Telemetry Array Gain; 9.3.2 Radio Metric Array Gain; References; Chapter 10: Future Development; 10.1 The Square Kilometer Array; 10.2 The Allen Telescope Array; 10.3 The DSN Large Array; 10.3.1 Correlation; 10.3.2 Monitor and Control; 10.3.3 Signal Distribution; 10.3.4 Maintenance; 10.3.5 Data Routing; 10.4 The Uplink Array; 10.4.1 Electronic Stability; 10.4.2 Tropospheric Variation; 10.5 Software Combiner; 10.6 Final Remarks; References; Appendix A: Antenna Location; Appendix B: Array AvailabilityAppendix C: Demodulation ProcessC.1 Signal Model; C.2 Carrier Demodulation; C.3 Subcarrier Demodulation; C.4 Symbol Demodulation; Appendix D: Gamma Factors for DSN Antennas; Appendix E: Closed-Loop Performance; Appendix F: Subcarrier and Symbol-Loop SNR Performance; F.1 Subcarrier I- and IQ-Loops; F.2 Digital Data-Transition Tracking I- and IQ-Loops; Appendix G: Derivation of Equations for Complex-Symbol Combining; G.1 Derivation of Eq . (6.2-5); G.2 Derivation of Eq . (6.2-11); General Reference List; Acronyms and AbbreviationsAn introduction to antenna Arraying in the Deep Space networkAntenna arraying is the combining of the output from several antennas in order to improve the signal-to-noise ratio (SNR) of the received signal. Now implemented at the Goldstone Complex and other Deep Space Network (DSN) overseas facilities, antenna arraying provides flexible use of multiple antennas to increase data rates and has enabled NASA's DSN to extend the missions of some spacecraft beyond their planned lifetimes.Antenna Arraying Techniques in the Deep Space Network introduces the development and use of antenDeep-space communications and navigation series.Deep Space NetworkAntenna arraysDeep Space Network.Antenna arrays.629.47/43/0973Rogstad David Herbert1940-1838893Mileant Alexander1838894Pham Timothy T1838895MiAaPQMiAaPQMiAaPQBOOK9911020003503321Antenna arraying techniques in the Deep Space Network4417986UNINA