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时间:2011-08-28 14:57来源:蓝天飞行翻译 作者:航空
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2.3 Radar Monitoring and Evaluation
Substantial progress was made in the quality monitoring and performance evaluation of the radar stations used.
In addition to all the monitoring and control activities (RTQC) performed at the Radar Sites or at remote and central RMC facilities, a lot of improvements were introduced at Centre Level as well:
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On-line monitoring of the availability and status of the radars in operational use, together with the on-line assessment of systematic measurement biases in range and azimuth. The availability of radar data is enhanced via continuous path monitoring and swapping to redundant access paths in case of outages of the preferred path.

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More regular and detailed evaluation exercises, using standard methods, tools and performance criteria via the RASS tools. Those evaluation campaigns are at present still intermittent and off-line activities. The future will provide an on-line, pseudo real-time version of RASS, adequately monitoring the radar systems on a permanent basis.

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Standard error reporting procedures are in place, which permit Operational Staff to immediately file complaints concerning perceived radar or system deficiencies. Replay and browsing tools permit to investigate the reported problems from so-called LRC-tapes (legal recording). For every report a feedback is given to the Staff concerned.

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The integration of new or upgraded radars follows strict safety procedures, briefly outlined below:


-Step 1: After the announcement of both the technical and operational release of the radar by the Owner Administration, an independent off-line technical evaluation is performed using the RASS facilities.
- Step 2: A successful outcome of step 1, yields the necessary basis for the proper integration and tuning of the radar into the Track Server. Successful completion of these activities lead to the declaration of a technical release of the new or upgraded facility concerned.
-Step 3: The last but not least step is an operational evaluation, conducted by Operations Staff, which upon successful completion results in the declaration of the Operational Release of the radar concerned. Thereafter the radar may actually be used, after suitable notification of the Owner Administration.
3. RADAR DATA PROCESSING SYSTEM
3.1 The Track Server
Most of the constituent components of the main Air Situation Picture in MADAP are created by an autonomous multi-radar data processing facility, which is generally called the Track Server (TS). The TS functionality was recently (June ‘96) segregated from the rest of the MADAP system and re-hosted on a dedicated platform in a redundant configuration (IBM-ES9221/model-211; modern CMOS technology mainframe). The TS works in a client/server relation with the remaining MADAP functional domains.
Some of the salient highlights of the TS are enumerated below:
3.1.1 Airspace covered and Track Capacity:
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Area covered: 544 * 432 Nm^2 (>800.000 square km)

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All levels

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Track capacity: 1024, (needs expansion, almost 900 simultaneous tracks during busy periods in Summer ‘96)


3.1.2 Radar Configuration and Optimal Adaptive Usage of Radar Coverage:
3.1.2.1 Radar Configuration
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The Track Server is currently configured to simultaneously process up to 32 radar stations(extensible).

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Both long-range and TMA radars

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Primary, SSR and Monopulse SSR Radars.


3.1.2.2 Coverage management through Auto-adaptive Network filters
Simultaneous processing of a high amount of available sensors yields a comprehensive and solid composite radar coverage, particularly beneficial for the lower airspace layers. The latter is important because the Air Situation as established by the MAS-UAC Track Server is not only used by the MADAP system itself, but also by many remote ATC and AD systems via real-time distribution over RADNET.
 
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