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PowerPoint Presentation Salient issues in ITU-R Study Group 3 and its Working Parties Carol Wilson Chairman, ITU-R Study Group 3 Contents • Scope and Working Parties • Building entry loss (BEL) • Clutter loss • HAPS/HIBS activity • Extending the upper frequency limit for short range propagation methods • Software, data and validation examples • Participation welcomed by all ITU-R members Scope of work and structure • Scope: “Propagation of radio waves in ionized and non-ionized media and the characteristics of radio noise, for the purpose of improving radiocommunication systems.” (...) WRC-23 AIs 1.1, 1.2, 1.4, 1.5, 1.18, 9.1 c and potentially more) • Need to develop site-specific model, potentially other building types, and to consider in combination with clutter loss • Intersessional work: CG 3J-3K-3M-8 – Chairman: Richard RUDD (G) https://extranet.itu.int/rsg-meetings/sg3/wp3j/cg3j3k3m8/SitePages/Home.aspx Clutter loss • Rec. ITU-R P.2108 – Prediction of clutter loss (0.03-100 GHz) • Rep. ITU-R P.2402 - method to predict the statistics of clutter loss for earth-space and aeronautical paths • Relevant to all WRC-23 agenda items where one or both terminals are immersed in local clutter (e.g.
Language:English
Score: 1536872.1 - https://www.itu.int/bestofwrs/...es/4/2021/04/P3.-WRS20_SG3.pdf
Data Source: un
RECOMMENDATIONS ON TECHNICAL REQUIREMENTS FOR ELECTRONIC NAVIGATIONAL SHIPBORNE EQUIPMENT AND ITS INSTALLATION ON BOARD SHIPS, INCLUDING IN PARTICULAR RADAR INSTALLATIONS AND RATE-OF-TURN INDICATORS / TRANSMITTED BY THE DANUBE COMMISSION
Facilities for reducing sea and rain clutter 1.14.1. The radar equipment shall have facilities with manual controls for reducing clutter from meteorological causes (sea and rain). 1.14.2. (...) At least the controls for gain, sea-clutter suppression and rain-clutter suppression must be adjustable by means of rotary knobs, the effect of which shall be roughly proportional to the angle of rotation. 2.4.14. (...) The gain must be adjusted in such a way that, in the area immediately beyond the range of operation of the anti-clutter control, noise can no longer be seen. The sea-clutter suppression control (STC) shall be set at minimum, while the rain-clutter suppression control (FTC) shall be switched off.
Language:English
Score: 1436087.9 - daccess-ods.un.org/acce...DS=TRANS/SC.3/WP.3/R.68&Lang=E
Data Source: ods
GE.09-25650 UNI
Article 3.09 Facilities for reducing sea and rain clutter 1. The radar equipment shall have facilities with manual controls for reducing clutter from sea and rain. 2. The sea-clutter control (sensitivity time control — STC) shall, at its maximum setting, be effective up to a distance of approximately 1 200 m. 3. (...) At least the controls for gain, sea clutter and rain clutter must be adjustable by means of a rotary control with an effect proportional to the angle of rotation. 6.
Language:English
Score: 1422434.4 - daccess-ods.un.org/acce.../TRANS/SC.3/WP.3/2010/5&Lang=E
Data Source: ods
RECOMMENDATIONS ON TECHNICAL REQUIREMENTS FOR ELECTRONIC NAVIGATIONAL SHIPBORNE EQUIPMENT AND ITS INSTALLATION ON BOARD SHIPS, INCLUDING, IN PARTICULAR, RADAR INSTALLATIONS AND RATE-OF-TURN INDICATORS / TRANSMITTED BY THE GOVERNMENT OF THE RUSSIAN FEDERATION
Reduction of sea and rain clutter Manual control; automatic control optional. Bearing facilities Electronic, capable of taking bearings in 5 secs, permissible error 1 , or mechanical, rotatableo through 360o Emission frequency 9 GHz (3.2 cm) or 33.2 GHz (9 mm); from 2015, only 33.2 GHz (9 mm) 1 Warm-up time, mins 4 Minimum antenna speed, rpm 18; the antenna must be capable of operating at a relative wind speed of 50 m/sec Reduction of interference from Signals from radar beacons in other radar equipment. accordance with IMO resolution Compatibility with radar beacons A.423 (XI) must be clearly displayed on the screen even when the wave and atmospheric precipitation clutter suppression (FTC) is switched off. TRANS/SC.3/WP.3/1998/20 page 4 2.
Language:English
Score: 1299018 - daccess-ods.un.org/acce...TRANS/SC.3/WP.3/1998/20&Lang=E
Data Source: ods
We should pick one or two key areas we want to advance and not clutter up the statement with a reiteration the content of previous statements. • Putting forests on the global agenda as important for meaningful and sustainable development o What we mean by that: forests need to be seen as part of the Natural Solutions narrative that is increasingly being taken up in international fora. • Working with the agriculture sector and have a meaningful joint dialogue at UNFF 16- o What we mean by that: we need to make a commitment to working with another land use sector so that we can bring the UNSPF into those areas where it has the potential for strong impact.
Language:English
Score: 1222661.7 - https://www.un.org/esa/forests.../2019/11/UNFF15-HLS-Canada.pdf
Data Source: un
PROPOSED CHANGES TO ANNEX 1
However, it illustrates how the information in the tables could be provided in a clearer, simpler and less cluttered format. iii. The second sentence in the note beneath Table A1.1 starting with “The pictogram for Divisions…” provides unnecessary information that the informal working group considered should be deleted on the basis that the table notes do not normally referred to other tables where the same or similar pictograms are used. (...) Merger (where this aids greater clarity) of identical text or pictograms in adjacent table entries, provides a less cluttered presentation of information in the tables and enables easier access to relevant classification and labelling information for the labelling practitioner; iii.
Language:English
Score: 1221576 - https://daccess-ods.un.org/acc...=ST/SG/AC.10/C.4/2019/2&Lang=E
Data Source: ods
CURRENT AND FUTURE TECHNOLOGY FOR MOTAPM DETECTION AND CLEARANCE : PRESENTATION / PREPARED BY THE UNITED NATIONS MINE ACTION SERVICE (UNMAS)
Many false alarms, especially in areas with metal clutter, like former battlefields. MOTAPM fitted with anti-handling devices or sensitive fuzes present a danger to deminers. (...) C C W /G G E/V II/W G .2/W P.4 Page 4 Ground-penetrating radar Reflects radio waves of mine/soil interface Detects all anomalies, even if nonmetal Performance negatively affected by roots, rocks, water pockets, other natural clutter; extremely moist or dry environments Better suited to detect layers than specific objects Higher costs than metal detectors More difficult to handle than metal detectors GPR as stand-alone system does not currently provide the clearance reliability required.
Language:English
Score: 1179389.8 - daccess-ods.un.org/acce...S=CCW/GGE/VII/WG.2/WP.4&Lang=E
Data Source: ods
Unfortunately, none of the standard video test sequences are very good for showing this effect, so we selected a non-standard test sequence, “clutter,” to illustrate the technique. This sequence begins with approximately 40 frames of still background. (...) Eventually, the motion settles down to a more reasonable amount. The “clutter” sequence was coded using all QCIF, all CIF, and dynamic resolutions.
Language:English
Score: 1142678.6 - https://www.itu.int/wftp3/av-a...ideo-site/9611_Atl/resamp1.doc
Data Source: un
Unfortunately, none of the standard video test sequences are very good for showing this effect, so we selected a non-standard test sequence, “clutter,” to illustrate the technique. This sequence begins with approximately 40 frames of still background. (...) Eventually, the motion settles down to a more reasonable amount. The “clutter” sequence was coded using all QCIF, all CIF, and dynamic resolutions.
Language:English
Score: 1142678.6 - https://www.itu.int/wftp3/av-a...deo-site/9611_Atl/lbc96325.doc
Data Source: un
AIRAC Trigger NOTAM • Publication timeframe before effective date: • 1 AIRAC cycle • 14 days • 7 days • 1 day • Issued on effective date • Q-code • QAOXX • QAOTT • Key words • POSTPONED • CANCELLED 7 AIP • Paper publications • Frequency of amendments • Lack of cover sheets • Lack coordination with neighboring states • Language • Inconsistent update of repeated data 8 NOTAM 9 Expired EST Old / very old Predictability Language Ambiguity Abbreviatio ns Non- NOTAM information Q-codes Multi subject Multi-part numbering Extended text Clutter Communicate Collaborate Comply AFI AIM Action Group  multi-stakeholder collaboration  engagements between partners  identify and address • availability, • deficiencies • publication  Reports to: • All participants • APIRG IIM SG • CANSO ATM WG • IATA AFI RCG  AIMAG collaboration platform • MS Teams Team IATA ICAO IFAIMA CANSO AFI Civil Aviation Authorities AFI Air Navigation Service Providers Data Users Organizations 12 Quality In Quality Out AIMing Together Towards Excellence 13 Thank you Lindi-Lee Kirkman Manager Safety Flight Operations Africa & Middle East Kirkmanl@iata.org
Language:English
Score: 1134955.1 - https://www.icao.int/WACAF/Doc...ated%20to%20NOTAM%20-%20EN.pdf
Data Source: un