3 Safety Objective
To test in a practical manner that the surveillance system meets its Operational
Requirement (OR) (1719).
4 General Requirements
4.1 The system performance as defined in the OR shall be confirmed using an aircraft
'target' and a general traffic study (804). As the system provides a large coverage
volume, tests shall be conducted to prove the basic volume, with detailed analysis in
operationally significant areas (805).
NOTE: Such significant areas will include, as appropriate:
a)Radar handover areas.
b)Holding areas.
c)Typical airway routes.
d)Areas with clutter or reflection problems.
e)Upper and lower bounds of operational cover.
f)The approach.
4.1.1 Recommendation Standard manoeuvres and manoeuvres that test the boundaries
of allowable procedures should be included (806).
4.2 The flight trial shall assess the radar sensor in all the configurations intended for
operational use (807).
NOTE: Such configurations may include main/standby transmitters, diversity/non-
diversity, polarisation settings, etc.
4.2.1 Recommendation The flight trials should consist of dedicated flying and a general
traffic study (808).
NOTE 1: Such flying may require the applicant to consider:
a)The flight profiles.
b)The recording conventions used with illustrative examples.
c)The responsibilities of all those involved. For example the assessing pilot,
controller etc.
d)The co-ordination with other ATC units for the flying profiles selected.
NOTE 2: Co-ordination ensures the minimum of disruption to the required profiles.
4.3 The flight trial shall determine the accuracy and resolution of the system (809).
5 Coverage check
5.1 Basic Coverage Check
5.1.1 The flight trial shall contain an appropriate series of slices to demonstrate the vertical lobe structure of the radar (810).
5.1.2 Recommendation: The Applicant should include slices at 1000, 2000, 4000, 6000, 10000, 20000 ft above the aerodrome reference point and as appropriate to the OR (811).
5.1.3 Recommendation: A 360-degree orbit at a suitable range should be carried out at a level equivalent to the base of required coverage. Any tangential fade should be recorded (812).
5.1.4 Recommendation: Target returns registered in each block of airspace should be recorded and analysed in order to identify areas of anomalous replies (813).
6 Accuracy Assessment
6.1 General Accuracy Requirements
6.1.1 The flight trial shall assess the accuracy of the system in the areas of operational significance (814).
6.1.2 The errors in the collection and recording of data shall be calculated and justified (815).
NOTE: This may include: a)The resolution error in any recording devices. b)The error in the equipment used to determine the aircraft position.
6.1.3 Recommendation The flight trial should produce at least five error profiles in each of the following areas: a) The Approach (816).
b) Each Holding Area (817).
c) Each radar handover area (818).
6.1.4 The flight trial shall demonstrate that the appropriate Target Level of Safety (TLS) can be achieved in the areas applying a separation standard or deconfliction minima.
NOTE: The radar sensor specification document (SUR 03) details the method of determining the TLS.
6.2 Accuracy Assessment for SRA Procedures
6.2.1 2 NM SRA There are no additional accuracy requirements.
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本文链接地址：CAP 670 Air Traffic Services Safety Requirements 2(103)
