Policy on Intellectual Property Right (IPR)
1 Introduction
2 Characteristics of radiolocation applications operating in the frequency
band 76‑81 GHz
3 Characteristics and protection criteria for radio astronomy observations
between 76‑81 GHz
4 Status on coexistence between radio astronomy and automotive radars
operating between 76-81 GHz
4.1 ITU-R and CEPT relevant documents
4.2 A Simple Study Result without Considering Terrain Information
4.2.1 Methodology
4.2.2 Results
4.3 Estimation of Coordination Zone Size for the ARO 12 m
telescope at Kitt Peak, Arizona
5 Single entry studies on coexistence between radio astronomy and
automotive radars operating between 76-81 GHz, taking into account terrain
information
5.1 Radiocommunication service allocations
5.2 Radio astronomy protection criteria
5.3 Propagation model
5.4 Terrain model
5.5 Automotive radar characteristics
5.6 Study Results
5.6.1 Plateau de Bure station
5.6.2 Maïdo station
6 Regulatory responses of individual administrations
6.1 Spain
6.1.1 Specific protections
i) Geographic reference point of the IRAM 30 m telescope for
establishing the limitations
ii) Limitations on property rights
iii) Limitations on the intensity of the electric field
iv) Radio coordination zone
v) Supervision and control
vi) Appeals
6.2 United States of America
6.2.1 Technical rules
7 Summary
Annex 1
Annex 2 – List of radio astronomy service station sites in the world capable of
using the 76-81 GHz band
Annex 3 – Measurement results at the Arizona Radio Observatory (ARO), Kitt
Peak, USA
1 Introduction
2 Beamwidth of the receiver
feed
3 Receiver and system
noise temperatures
4 Beam polarizations
5 Measurements of the radar
at 1.7 km
6 Measurement of the radar e.i.r.p.
at 27 km
7 Summary of results
8 Comparison with Recommendation
ITU-R RA.769
8.1 Spectral line
threshold
8.2 Continuum threshold
9 Estimated errors
10 Conclusions