1、MIL-STD-LbLOA 66 H 77777LL 0017b55 b H b c MILITARY STANDARD MAGNETIC TAPE RECORDER/REPRODUCER FORMATS FOR ASW SENSOR AND SYSTEEIS DATA -F -3-3 *o MIL- STD - 16 10A 6 July 1987 SUPERSEDING FI1 L - STD - 16 1 O 19 April 1974 (See 6.3) / THIS DOCUMENT CONTAINS 59 PAGES. AMSC N/A FSC 6625 DISTRIBUTION
2、STATEMENT A Approved for public release; distribution unlimited Licensed by Information Handling ServicesNIL - STD - 16 1 O A 6 July 1987 DEPARTMENT OF THE NAVY NAVAL SEA SYSTEMS COMMAND Washington, DC 20362-5101 Magnetic Tape Recorder/Reproducer Formats for ASW Sensor and Systems Data. 1. of the De
3、partment of Defense. This Military Standard is approved for use by all Departments and Agencies 2. Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, Naval Sea Systems Command, SEA 5523,
4、 Department of the Navy, Washington, DC 20362-5101 by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. ii Licensed by Information Handling Services7 MIL-STD-LbLOA bb 77977LL 00L7b57 T M lIL-SD- 161UA 6 July 1987
5、 FOREWORD 1. Operations (CNO) to foster the compatibility and exchangeability of magnetic tape recordings of sensor data among members of the Anti-Submarine Warfare (AN) community as a means of improving ASW effectiveness. This standard was established at the request of the Chief of Naval 2. serious
6、 and deleterious effect on the accurate and expeditious exchange of information within the ASW community. It is the dedicated purpose of this standard to create a synergistic harmony within the Navy for its conduct of Anti-Submarine Warfare. The lack of a standard governing these sensor data recordi
7、ngs has had a 3. substantially increased cost of ownership for its ASW data collection and management network. reduction, difficult logistics support, complex maintenance and excessive training burdens. real standardization is strict adherence to a unifying standard. This standard is intended to fos
8、ter a unity whereby the Navy reaps the maximum benefits with minimum impact on. the individual effectiveness of its component programs. The prevailing fragments of Navy-wide standardization have caused a This situation has brought about inefficient data kkey element in achieving relief from these ha
9、ndicaps via 4. This standard represents the results of research among users of sensor data in the ASW community. It also reflects comments and ideas from the tape recording industry. distribute, or utilize ASW sensor data. from this standard are required to support this decision by demonstrating tha
10、t: the performance of their mission as defined by the CNO; and that each proposed deviation will be in the best overall interest of the Navy. Consequently, all elements of the ASW community are counseled to attain as much overall standardization as possible, even where specific deviations are grante
11、d. This standard is to be used as a baseline for tape . recording requirements in the design of all future systems which gather, Agencies which propose to deviate the use of each specific aspect of this standard would seriously degrade 5. This standard applies to the membership of the ASW community,
12、 but may be used by other activities. The ASW community includes acquisition platforms and reconstruction systems, analysis and intelligence centers, training facilities, and agencies which cooperate with these activities. 6. Requests for deviation from specific areas of this standard shall be made
13、via the ASW Tape Recorder Steering Group to the CNO (OP-951) for ,action and resolution. Such requests shall include technical design criteria as well as justifications which support the desired deviations and planning and funding documents which show how the impact of deviation will be accommodated
14、 by the ASW community. iii Licensed by Information Handling ServicesPI L . STD . 16 1 (YA 6 July 1987 CONTENTS Page Paragraph 1 . SCOPE 1 1.1 Scope . 1 1.2 Applicability . 1 1.3 Classification 1 1.4 Purpose . 1 2 . 2.1 2.1.1 2.2 2.3 3 . -4 ; 4.1 4.1.1 4.1.2 4.1.3 4.2 4.2.1 4.2.2 4.2.3 4.3 4.3.1 4.3.
15、2 4.3.3 4.3.4 4.3.5 4.3.6 4.3.7 4.3.8 4.3.9 4.3.10 4.3.11 4.3.11.1 4.3.11.2 4.4 4.4.1 4.4.2 4.4.3 4.4.4 4.4.4.1 4.4.4.2 4.4.4.3 4.4.4.4 4.4.4.4.1 4.4.4.4.2 REFERENCED DOCUNENTS . Government documents Specifications Other publications Order of precedence . DEFINITIONS GENERAL REQUIREMENTS . Tape Trac
16、k format Track numbering . End-of-tape sensing . Tape packaging system . Reels . Tape oxide orientation Tape shipment . Heads . Head configuration Head stack mounting . Head location . Head stack tilt . Individual gap azimuth . Head stack azimuth Record head gap . Head stack numbering Head number .
17、Individual head polarity Record head . Reproduce head Tape speed, stability and accuracy Analog/hybrid speeds . Parallel digital recording speed Speed selection . Tape speed accuracy and stability . Record tape speed . Interchannel time displacement Cumulative flutter Flutter components Spectral flu
18、tter . Spectral artifacts Gap scatter . error (ITDE) . 2 6 6 7 7 7 7 7 7 7 7 7 7 8 8 8 8 8 8 8 8 8 8 9 9 9 9 9 9 9 9 10 10 10 10 iv Licensed by Information Handling ServicesMIL-STD-161OA 66 7777711 0017657 3 tfIL-STD-161OA . 6 July 1987 . Paragraph 4.4.5 4.5 4.5.1 4.5.2 4.5.2.1 4.5.2.2 4.5.2.3 4.5.2
19、.4 4.5.2.5 5 . 5.1 5.2 5.2.1 5.2.1.1 5.2.1.2 5.2.1.3 5.2.1.4 5.2.2 5.2.2.1 5.3 5.3.1 5.3.2 5.3.3 5.3.4 5.3.5 5.4 5.4.1 5.4.2 5.4.3 5.4.4 5.4.5 5.4.5.1 5.4.5.2 5.4.5.3 5.4.5.4 5.4.5.5 5.4.5.6 5.4.6 5.4.7 5 -5 5.5.1 5.5.2 5.5.2.1 5.5.2.2 5.5.2.3 5.5.2.4 5.5.3 CONTENTS . Continued Time base reference .
20、 Analog/serial digital channel . Frequency response Track assignments . Analog and serial digital data Parallel digital data . Digital annotation and low rate digital data . Voice . Time code . DETAILED REQUIREMENTS Recording method Analog recording Carrier center frequency Carrier frequency deviati
21、on . Bias frequency Direct recording Digital data codes HDDR track assignments Data input and output (I/O) . FM recording Recorded bias level . Recorded bias level . HDDR Data sense Serial digital servo reference tracks Serial HDDR . Record elements . Synchronization for DM-f.1 Bit packing density .
22、 Recording techniqu.e . Track 3 annotation Data word format Block format Data protocol . Interface definition Recording method Word format . High rate data streams BER . Parallel HDDR . Intrinsic tape recorder performance . Track allocation 14-track systems 28-track systems Parity track inputs . Dig
23、ital word format . Data sense 10 10 10 10 il ia 11 11 11 11 11 11 11 11 11 11 11 11 11 12 12 12 12 12 12 12 12 13 13 13 14 15 15 15 15 15 15 16 16 16 16 16 16 16 16 16 17 V Licensed by Information Handling ServicesMIL-STD-3bLOA bb m 9977733 0037bb0 T W i. F1 I L- STD - 16 1 O A 6 July 1957 Paragraph
24、 5.5.4 5.5.5 5.5.5.1 5.5.6 5.5.7 5.5.8 5.5.8.1 5.5.8.2 5.5.9 5.5.9.1 5.5.10 5.6 5.7 5.7.1 57.1.1 5.7.1.2 5.7.1.3 5.7.2 5.7.2.1 5.7.2.2 CONTENTS - Continued Page Parallel digital recording systems element functions 17 On-tape parallel recording code . 17 17 PROP code format Recording technique . 18 R
25、ecorded bit packing density 18 BER 18 Error correction 18 Control of bit error sources 19 Signal monitoring . 19 Status displays 19 19 Transport bypass capability . Rotary HDDR 19 Tests . 19 General test considerations . 19 Pseudorandom bit error 20 Pseudorandom word 20 Pattern sensitivity test 21 P
26、arallel test requirements 21 General considerations 21 High rate serial data- testng 22 . ;.,., . . . 6. NOTES 6.1 Changes from previous issue . 22 6.2 Subject term (key word) listing . 22 TABLES Table I. II. III. IV * V. VI. VII. Figure 1. 2. 3. 4. 5. 6. 7. 28-track standard track assignments 23 Wi
27、deband (FM) parameters - group II (30 percent) . 24 Direct-record parameters . 24 Track assignments for parallel words . 25 PROP randomizing code, odd sequence 26 PROP randomizing code, even sequence . 27 28 Annotation data format . FI GURES 28-track. recorded tape format 33 28-track head and stack
28、configuration 34 Head stack tilt angle 35 Head stack gap azimuth, effective gap width 36 Head stack azimuth 37 Gap scatter 38 39 Standard time code, format B . . vi Licensed by Information Handling ServicesFigure 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. MIL-STD-LbLOA bb 77777LL 00L7bbl L MI
29、L-STD-161OA 6 July 1987 CONTENTS - Continued Page Single track code waveforms and definitions . Scope of MIL-STD-1610 digital annotation Typical data word format . Header word format . . Zulu time word format RF/track assignment word format Sonobuoy latitude word format Sonobuoy longitude word forma
30、t . Platform unique data word format . Platform unique data word format . Typical data block format Annotation record waveform . PROP code frame set 40 41 42 43 44 45 46 47 48 49 50 51 52 vii Licensed by Information Handling ServicesMIL-STD-363OA 66 M 7777733 0039662 3 El IL - STD - 16 1 OA 6 July 1
31、987 P % 1. SCOPE 1.1 Scope. This standard covers the magnetic tape recorder configurations to be used to record and reproduce ASW sensor and system data. 1.2 Applicability. This standard is required for the acquisition of new or updated magnetic tape recorder/reproducers format for ASW systems which
32、 record and reproduce any quantity of data in any of the following formats: (a) Analog direct (wideband, 2 megahertz (FlHz). (b) Analog frequency modulation (FFI) (wideband - group 11). (c) Single-track or multi-track serial high density digital (HDDR). (d) Parallel HDDR. (e) Mixed analog/digital. (
33、f) Rotary HDDR. 1.2.1 This standard is applicable to and includes all new air, surface, subsurface, and land-based ASW recording systems. In addition, it applies to all new acquisitions of any quantity of analog FM, analog direct, serial or parallel high density electronics to retrofit existing magn
34、etic tape systems for acquisition and reconstruction of ASW sensor and system data. 1.3 Classification. This standard covers 28-track longitudinal recording using 1-inch (25.4 millimeter (mm) wide tape and rotary recording using 19 mm magnetic tape. subset of 28-track systems. Fourteen-track longitu
35、dinal systems are also covered as a 1.4 Purpose. This stancfard defines the terminology, standardizes the recorder/reproducer configuration, and defines certain performance limits to assure crossplay compatibility between tapes recorded at one ASW facility or platform and reproduced at another. * 2.
36、 REFERENCED DOCUWENTS 2.1 Government documents. 2.1.1 Specifications. Unless otherwise specified, the following specifications of the issue listed in that issue of the Department of Defense Index of Specifications and Standards (DoDISS) specified in the solicitation form a part of this standard to t
37、he extent specified herein. i SPECIFICATIONS FEDERAL W-R-175 - Reels and Hubs for Magnetic Recording Tape, General Specification for. W-R-175/4 - Reels, Precision, Aluminum, with 3-Inch Center Hole (Detail Specification). W-R-175/6 - Reels, Precision, Glass Flange with Aluminum Hub, 3-Inch Center Ho
38、le (Detailed Specification). W-T- 1553 - Tape, Recording, Instrumentation, Magnetic Oxide-Coated. 1 Licensed by Information Handling Services MIL-STD-Lh10A bb m 7777733 0037bb3 5 W MIL - STD - 16.1 OA 6 July 1987 STANDARDS MILITARY MIL-STD-2179 - Helical Digital Recording Format for 19-mm Magnetic T
39、ape Cassette Recorder/Reproducers. (Copies of specifications 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 a part of this stan
40、dard to the extent specified herein. Unless otherwise specified, the issues of the documents which are DoD adopted shall be those- listed in the issue of the DoDISS Specified in the solicitation. which have not been adopted shall be those in effect on the date of the cited DoDISS. The issues of docu
41、ments INTER-RANGE INSTRUMENTATION GROUP (IRIG) 104 - Standard Time Code 106 - Telemetry Standards, AD/A089 90B 118 - Test llethods for Telemetry Systems and Subsystems 200 - IRIG Standard Time Formats, TCWG, AD/728 069 Vol. III, AD/A121 858. (Application for copies should be addressed to Secretariat
42、, Range Commanders Council, White Sands Missile Range, NM 88002.) (Nongovernment standards are generally available for reference from libraries. They are also distributed among nongovernment standards bodies and using Federal agencies.) 2.3 Order of precedence. In the event of a conflict between the
43、 text of this standard and the references cited herein, the text of this standard shall take precedence. 3. DEFINITIONS 3.1 Aliasing. Aliasing is the generation of spurious frequency components resulting from an insufficiently high sampling rate. 3.2 Areal packing density. Areal packing density is t
44、he total number of data bits contained within a specific area on tape, usually expressed in terms of bits per square inch or bits per square centimeter. 3.3 Bandwidth. Bandwidth is the difference between the highest and lowest frequencies at which the amplitude response of the recorder/reproducer. i
45、s within specified limits. Common practice is to define bandwidth at the points where the frequency response is 3 decibels (dB) below the response at 10 percent of the specified upper frequency limit. 3.4 Baseline restorer. Baseline restorer is a circuit to restore the direct current (dc) component
46、of a signal. 2 Licensed by Information Handling Servicesil1 L - STD - 16 1 CA 6 July 1987 3.5 Bit error. Bit error is the incorrect representation of a binary digit. 3.6 Bit error rate (BER). BER is the rate at which bit errors occur in the data bits during reproduction. data bit errors to the total
47、 number of data bits processed. expressed as the ratio of bit errors to either tape length or unit time. BER is usually expressed as the ratio of It may also be 3.7 Bit packing density. Bit packing density is the number of total bits recorded per unit track length unit, usually expressed as kilobits
48、 per inch (kb/in) or bits per millimeter (b/mm). 3.8 Bit slip. Bit slip is the error condition in which the phase of a digital signal, with respect to its associated clock, has shifted or changed to such an extent that the correct synchronism between clock and signal is not maintained. Bit slip also
49、 occurs when additional data bits have been inserted or deleted from a data bit sequence. 3.9 Bit synchronizer. A bit synchronizer is an electronic circuit that extracts the binary data and the associated bit-rate clock from a pulse code modulated signal that has been reproduced from a tape recording. extraction process restores and maintains the correct relative timing of the data and the bit-rate clock. The 3.10 Carrier frequency. The carrier frequency is the frequency which is modulated by the data in an FM recording system. 3.11 Cross-play. Cross-play is to record and repr
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