IEC TR 63385-1:2023

IEC TR 63385-1 ®
Edition 1.0 2023-11
TECHNICAL
REPORT
colour
inside
Transmitting and receiving equipment for radiocommunication – Short-range
radar technologies and their performance standard –
Part 1: System applications of short-range radars

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IEC TR 63385-1 ®
Edition 1.0 2023-11
TECHNICAL
REPORT
colour
inside
Transmitting and receiving equipment for radiocommunication – Short-range

radar technologies and their performance standard –

Part 1: System applications of short-range radars

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.060.20  ISBN 978-2-8322-7752-2

– 2 – IEC TR 63385-1:2023 © IEC 2023
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms, definitions and abbreviated terms . 6
3.1 Terms and definitions . 6
3.2 Abbreviated terms . 6
4 Considerations on measurement principles of radars . 7
4.1 General . 7
4.2 Pulsed radar system . 7
4.3 Frequency modulated (FM) radar system . 9
4.4 Digital processing radar system using signal correlation . 10
4.5 Secondary surveillance radar system . 10
4.6 Passive radar system . 12
5 Practical applications of short-range radars . 12
5.1 General . 12
5.2 Automotive radar applications . 12
5.3 Radars in mobile phones . 13
5.4 Radars for trapped-person detection . 13
5.5 Weather radars . 13
5.6 Short-range radars for civil aviation . 13
5.6.1 Airborne weather radar . 13
5.6.2 Radar altimeters . 14
5.7 Airport object detection radars . 14
5.8 Security inspection radars . 15
5.9 THz short-range radars . 16
Bibliography . 17

Figure 1 – Schematic diagram of radar system . 7
Figure 2 – Waveform and timing of transmission and reception for a pulsed radar
system . 7
Figure 3 – Frequency sweep pattern and beat frequency of transmission and reception
for linear FMCW radar . 9
Figure 4 – Time measurement using correlation calculation by digital codes . 10
Figure 5 – Principle of secondary surveillance radar system . 11
Figure 6 – Principle of passive radar system . 12
Figure 7 – Airborne weather radar . 14
Figure 8 – Foreign object and debris detection system . 15
Figure 9 – Imaging application scene . 16
Figure 10 – Results of radar images . 16

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
TRANSMITTING AND RECEIVING EQUIPMENT FOR
RADIOCOMMUNICATION – SHORT-RANGE RADAR
TECHNOLOGIES AND THEIR PERFORMANCE STANDARD –

Part 1: System applications of short-range radars

FOREWORD
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IEC TR 63385-1 has been prepared by IEC technical committee 103: Transmitting and receiving
equipment for radiocommunication. It is a Technical Report.
The text of this Technical Report is based on the following documents:
Draft Report on voting
103/235/DTR 103/257/RVDTR
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this Technical Report is English.

– 4 – IEC TR 63385-1:2023 © IEC 2023
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/standardsdev/publications.
A list of all parts in the IEC 63385 series, published under the general title Transmitting and
receiving equipment for radiocommunication – Short-range radar technologies and their
performance standard, can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
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INTRODUCTION
Short-range radar systems are widely exploited in civil applications, such as automotive,
weather forecast, mobile, aviation, or security inspections applications. The performance of
each radar system is guaranteed in the field without any harmful interference but the frequency
allocation using theoretical calculations does not consider the latest mitigation technologies. In
order to increase the efficiency of the system usage without any degradation of the performance
of the radars, this document describes the principles of the radar systems and their performance
in applications.
This document summarizes the technological features of short-range radar systems. In addition,
some practical applications are also investigated and reported.

– 6 – IEC TR 63385-1:2023 © IEC 2023
TRANSMITTING AND RECEIVING EQUIPMENT FOR
RADIOCOMMUNICATION – SHORT-RANGE RADAR
TECHNOLOGIES AND THEIR PERFORMANCE
...