ARMY MIL-STD-188-145-1987 INTEROPERABILITY AND PERFORMANCE STANDARDS FOR DIGITAL LOS MICROWAVE RADIO EQUIPMENT《互操作性和性能标准的数字微波无线电》.pdf
《ARMY MIL-STD-188-145-1987 INTEROPERABILITY AND PERFORMANCE STANDARDS FOR DIGITAL LOS MICROWAVE RADIO EQUIPMENT《互操作性和性能标准的数字微波无线电》.pdf》由会员分享,可在线阅读,更多相关《ARMY MIL-STD-188-145-1987 INTEROPERABILITY AND PERFORMANCE STANDARDS FOR DIGITAL LOS MICROWAVE RADIO EQUIPMENT《互操作性和性能标准的数字微波无线电》.pdf(28页珍藏版)》请在麦多课文档分享上搜索。
1、MIL-STD-LBB -145 TC 77777LL 0022755 3 - Fu 3+/7 MIL-STD-188-145 7 MAY 1987 SUPERSEDING 1 NOVEMBER 1976 MIL-STD-188-322 MILITARY STANDARD INTEROPERABILITY AND PERFORMANCE STANDARDS FOR DIGITAL LOS MICROWAVE RADIO EQUIPMENT AMSC N/A AREA TCTSISLHC DISTRIBUTION STATEMENT A. Approved for public release;
2、 distribution is unlimited. / THIS DOCUMENT CONTAINS The following other Government documents and publications form a part of this standard to the extent specified herein. DEPARTMENT OF DEFENSE DoDD 5000.43 Acquisition Streamlining NATIONAL SECURITY AGENCY NACSEM 5201 (C) TEMPEST Guidelines for Equi
3、pment/System Design (U) a NACSIM 5100 (C) Compromising Emanations Laboratory Test Requirements, Electro- magnetics (U) Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-STD-188-
4、145 (Copies of specifications, standards, handbooks, drawings, and publications required by contractors in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting officer,) 2.2 Other publications, The following documents form
5、a part of this standard to the extent specified herein. Unless otherwise specified the issues of the documents that are DoD adopted shall be those listed in the issue of the DoDISS specified in the solicitation. The issues of documents that have not been adopted shall be those in effect on the date
6、of the cited DoDISS. NORTH ATLANTIC TREATY ORGANIZATION (NATO) STANDARDIZATION AGREEMENTS (STANAGs) 1 STANAG 4206 series - The NATO Multi-Channel Tactical Digital Gateway (consists of STANAG 4206 through STANAG 4213) (Copies of STANAGs required by contractors in connection with specific acquisition
7、functions should be obtained from the contracting activity or as directed by the contracting officer.) 2.3 Order of precedence. In the event of a conflict between the text of this standard and the references cited herein, the text of this standard shall take precedence. 4 Copyright Communications -
8、Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NIL-STD-L -145 TC 77777LL 00227b4 4 W T MIL-STD- 188- 145 3. DEFINITIONS 3.1 Definitions. Definition of terms used in this document shall be as specified in t
9、he current edition of FED-STD-1037. 3.2 Abbreviations and acronyms. Abbreviations and acronyms used in this document are listed in appendix B. O i l 5/6 Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without
10、 license from IHS-,-,-I l l I I l I I l I MIL-STD-LBB -1115 TC 9999911 0022765 b W MIL-STD-188- 145 4. GENERAL REQUIREMENTS 4.1 Introduction. A microwave link transfers information inelectrical form from one point to another by means of a microwave radio signal. The microwave transmitter accepts a d
11、igital data signal input and produces an analog radio frequency (rf) electromagnetic signal output. The microwave receiver accepts the analog rf electromagnetic signal from the transmitter via the propagation path and produces a digital data signal output. The purpose of the interoperability standar
12、ds is to standardize the digital data and analog rf electromagnetic signals. The object is to enable microwave links to operate integrally with other microwave links and links that utilize other transmission media within long-haul and tactical communications systems. The purpose of the performance s
13、tandards is to establish parameters that will ensure that the output digital data signals replicate the input digital data signals. Figure 1 illustrates a typical digital LOS microwave radio link. 4.2 Description of a digital LOS microwave radio set. A microwave radio link is made up of two microwav
14、e sets, one at each end of an LOS propagation path. If LOS propagation cannot be achieved between the two paths. Each digital microwave set (in the conventional duplex configuration) accepts and delivers a transmission bit stream (TBS) , a clock bit stream (CBS), and a service channel bit stream (SC
15、BS). The SCBS includes monitor, alarm, and control data bit streams. Figure 2 shows the composition of a digital LOS microwave radio terminal set. - - microwave sets, then the link will include a microwave repeater, or repeaters, to provide tandem LOS propagation 4.3 Frequency bands. The microwave r
16、adios shall operate in one or more of the Government frequency allocation bands shownin table I. Within the Government bands, the operating bands and frequencies shall be as specified by the Military Communications-Electronics Board (MCEB) . Although the term “microwave” is generally recognized as a
17、pplying to frequencies from 1 to 30 GHz, three bands that are actually outside of this range are included in this standard because of the inventory of LOS equipment in these bands for which no other standards exist. Tactical systems shall be capable of operation in the long-haul frequency bands to e
18、nable tactical systems to serve as backups to portions of long-haul systems. TABLE I. Government frequency allocation bands. Frequency Band 225- 400 MHz 410 - 420 MHz 902 - 928 MHz -_ 1.350 1.400 GHz 1.429 - 1.435 GHz 1.710 - 1.850 GHz 2.200 - 2.290 GHz 4.400 - 4.990 GHz 7.125 - 8.400 GHz 14.500 - 1
19、5.350 GHz 21.200 - 23.600 GHz 25.250 - 27.500 GHz Long-Haul Application X X X X X Tactical Application X X 7 . -. Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-+ u. a O GI E c.l
20、 8 .,-I a 8 Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-STD-LB -145 TC a 777771L 00227b7 T a -* MIL-STD-188-145 w o IL K w c z a - a m a w - o v) - L O za li I- * m v) 9 C
21、opyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-STD- 188-145 $.4! Equipment reliability. The mean time between outages (MTBO) for long-haul radio sets shall not be less than 12
22、5,000 hours. For tactical systems not configured for hot standby with automatic switchover, the mean time between failures (MTBF) of radio sets shall not be less than 3,000 hours. 4.5 Electrical interface, As a minimum, the interfaces for serial data shall be in accordance with the provisions of MIL
23、-STD-188-114. The capability to accept additional interface standards is not precluded. 4.6 Transmit modulation randomization. The transmitted data shall be randomized in order to reduce spectral peaks in the transmit spectrum and to assure there are adequate data transitions to allow receiver clock
24、 recovery. 4.7 Logic or sigiial sense protection, Frequency translation techniques incorporated by microwave equipment shall not invert the logic or signal sense of data streams. 4.8 Dispersive propagation. As a DO, the microwave radio equipment should contain circuitry to reduce the effects of disp
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