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Bernard Caron

Mr. Bernard Caron was Vice-President of the CRC's Broadcast Technology Branch until he retired in 2012. Mr. Caron joined the CRC in 1979 and assumed his role as a VP in 2004. He retired from CRC in 2012 and is now working as a consultant and a teacher.

During these years at CRC, he contributed to many technological advancements, including the development of videotext and teletext systems, the precursors of the Internet, and the creation of the CRC's Advanced Television Evaluation Laboratory (ATEL). This laboratory was used to subjectively evaluate five proposed television systems, out of which emerged today's North American standard for High Definition Television.

Mr. Caron was involved in the joint Canada-USA-Brazil OFDM-6 project, which aimed to adapt and evaluate the Digital Television transmission technology proposed by Europe for the Americas. He has also negotiated and managed many projects under contract for private enterprises from the United States, China, Korea and Canada to evaluate the performance of various Digital Television transmission systems and technologies.

Mr. Caron received a B. Sc. in Electrical Engineering from Université Laval, Québec City, in 1978 and a M. Sc. from the University of Ottawa in 1984. He is a member of the Professional Engineers of Ontario. He has actively participated on several employee-centric committees including the Industry Canada Survey Advisory Committee and the CRC Employee Advisory Committee, of which he was a founding member. He has published more than 70 papers and reports.

His goal is to help manage programs or organisations with a technological component in the best possible way.

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Papers by Bernard Caron

IEEE Transactions on Consumer Electronics, 1993

Advanced Television systems will be introduced in the second half of this decade, and will co-exi... more Advanced Television systems will be introduced in the second half of this decade, and will co-exist for some time with NTSC broadcast systems. There is a need to understand the possible interferences from ATV systems into NTSC systems so that appropriate spectrum ...

Absfrucd transmitter identification system using embedded spread spectrum sequence is proposed in... more Absfrucd transmitter identification system using embedded spread spectrum sequence is proposed in this paper. Principles of the proposed technique is illustrated through an example of digital TV (DTV) transmitters identification. Code generators in Matlab are developed to study ...

A mobile communications system has been built to study the parameters affecting data transmitted ... more A mobile communications system has been built to study the parameters affecting data transmitted at 9.6 Kb/s over a laboratory simulated VHF mobile radio channel with additive white gaussian noise and Rayleigh fading. The signal is demodulated by a conventional mobile FM radio ...

International Broadcasting Convention (IBC), 1996

ABSTRACT

IEEE Transactions on Consumer Electronics, 2005

Transmitter identification (TxID, or transmitter fingerprinting) technique is used to detect, dia... more Transmitter identification (TxID, or transmitter fingerprinting) technique is used to detect, diagnose and classify the operating status of radio transmitters. Due to an ever-increasing number of transmitters, the need for transmitter identification is becoming an urgent issue, since it enables the broadcast authorities and operators to identify the source of interference. As a result, transmitter identification has been recognized as an important feature in the ATSC synchronization standard for distributed transmission. A new robust data transmission technique using the transmitter identification (TxID) sequences in the digital TV (DTV) signals is proposed in this paper. The major advantage of this low data transmission system is its robustness and extremely large coverage. The principle of the proposed data transmission system is presented. The modulation technique and throughput of the data transmission system is also evaluated.

SMPTE Journal, 1998

A prototype 6-MHz coded orthogonal frequency division multiplexing transmission system (COFDM-6) ... more A prototype 6-MHz coded orthogonal frequency division multiplexing transmission system (COFDM-6) for advanced television (ATV) terrestrial broadcasting was evaluated at the Communications Research Center (CRC). This paper provides the laboratory and field test results of the COFDM-6 modem.

IEEE Transactions on Consumer Electronics, 1994

It is proposed to enhance the Ghost Cancelling Reference (GCR) signal so that it can provide addi... more It is proposed to enhance the Ghost Cancelling Reference (GCR) signal so that it can provide additional information about channel characteristics. The proposed enhancement consists of the addition of a very short modulated or unmodulated staircase signal to detect ...

IEEE Transactions on Broadcasting, 1994

Abstract This paper presents results of computer simulations and laboratory tests to investigate ... more Abstract This paper presents results of computer simulations and laboratory tests to investigate various digital techniques (ie, trellis coded QAM, vestigial sideband (VSB) modulation, orthogonal frequency division multiplexing (OFDM), and adaptive ...

1999 IEEE Emerging Technologies Symposium. Wireless Communications and Systems (IEEE Cat. No.99EX297), 1999

ABSTRACT The Communications Research Centre (CRC) conducted field tests on a pilot local multipoi... more ABSTRACT The Communications Research Centre (CRC) conducted field tests on a pilot local multipoint communications system (LMCS) at 28 GHz, in a major urban centre in September of 1997. The coverage of two of four operational cells was studied. This system was configured to broadcast digital video and audio programs originating from a satellite signal. Measurements were taken at 395 sites within a 5-km radius to evaluate the system's availability. The availability is highly dependent on terrain, path clearance, and transmitter/receiver antenna height. Another noteworthy point is that, for both cells, there were sites available outside the anticipated 5-km radius. Measurements were done within clusters consisting of three-by-three test sites, spaced at a distance equal to one residential house, to simulate a real LMCS implementation case. The purpose of this test was to confirm that no large variations of the signal power after down conversion (SPAD) within a small area existed where there were no major blockage. From the results it can be noted that the SPAD variations are only a few dB within a cluster and that all the measured SPAD match closely with the calculated SPAD curves assuming free space propagation

The results from field measurements made to evaluate the performance of digital transmission over... more The results from field measurements made to evaluate the performance of digital transmission over television channels (teletext) were presented and the possible means of improvement identified. The television and teletext signal parameters and test signals used in measuring system performance were reviewed. The results of the measurements, performed across Canada, are used to indicate the teletext reception conditions for different situations. Different factors and parameters affecting teletext performance are also studied. Image grade and eye diagrams are shown to give indications about the teletext service quality to be expected. The VHF and UHF transmission of the teletext signal offered similar performances. Small bidirectional antennas are a poor choice for teletext reception. Quasi-synchronous demodulators result in performance close to those obtained with synchronous models. The study of teletext error statistics shows that a code correcting 2 single errors per line would be sufficient for the majority of cases. Possible improvements are suggested. Two ways are proposed to estimate the bit error rate.

36th IEEE Vehicular Technology Conference, 1986

International Broadcasting Convention - IBC '94, 1994

The aggregate data rate for an ATV transmission system, which includes compressed video, compress... more The aggregate data rate for an ATV transmission system, which includes compressed video, compressed audio, conditional access and auxiliary data channel, is around 18-20 Mbps. In North America, this data rate must be squeezed into a 6 MHz channel for terrestrial ...

1999 IEEE International Conference on Personal Wireless Communications (Cat. No.99TH8366), 1999

The Communications Research Centre (CRC) conducted field tests on a pilot Local Multipoint Commun... more The Communications Research Centre (CRC) conducted field tests on a pilot Local Multipoint Communications System (LMCS) at 28 GHz, in a major urban centre in September of 1997. About 400 test sites were visited. The coverage of two of a multisystem cells was studied. This ...

Signal Processing of HDTV, 1994

The 5th International Symposium on Wireless Personal Multimedia Communications, 2002

We describe how the transmission technologies developed for over-the-air digital television broad... more We describe how the transmission technologies developed for over-the-air digital television broadcasting, could be used to offer wireless personal multimedia communications. The results of some transmission tests demonstrate some of the potentials and problems of this approach.

The 13th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, 2002