Résumé : Le cadre de compétence CanMEDS définit les rôles attendus des médecins canadiens, mais fait l’objet de certaines critiques. Par exemple, la définition et l’adoption du rôle de promoteur de la santé semblent problématiques, entre autres en ce qui a trait à une dualité implicite entre des actions de type individuel et collectif. Cette étude visait à identifier les facteurs qui influencent l’intention d’adopter des comportements associés au rôle de promoteur de la santé et à en comparer les variables prédictives selon le type d’action. Une étude transversale descriptive a été réalisée utilisant un questionnaire web élaboré selon les principes de la Théorie du comportement planifié d’Ajzen. Le questionnaire a été envoyé par courriel en 2013 à tous les résidents en médecine de famille des universités francophones du Québec. Soixante-huit résidents (7%) ont complété le questionnaire. L’importance du rôle pour les participants et la pression sociale perçue étaient particulièrement significatives dans la prédiction de l’intention d’adopter des comportements associés au rôle de promoteur de la santé (variance expliquée de 26%, p<0.001; et 48%, p<0.001; respectivement). Les résidents participants avaient également une attitude plus positive envers les actions de type individuel (moyenne =72,8% vs 58,3%, p<.05), et percevaient plus de pression à adopter celles-ci (moyenne = 82.7% vs 74.3%, p<.05). Ils ressentaient moins de contrôle quant à l’adoption d’action de type collectif (moyenne = 79.8% vs 84.6%, p<.05). Étant donné que différents types d’action sont associés au rôle de promoteur de la santé, l’intention d’adopter ce rôle peut être influencée par différents facteurs. Une redéfinition éventuelle du rôle devrait prendre en compte cette dualité et les interventions pédagogiques devraient être modulées en conséquence. // Abstract : The CanMEDS framework defines the roles and competencies for all Canadian physicians. It is widely used but fraught with challenges, particularly concerning the understanding and adoption of the health advocate role, which includes both individual and collective type actions. This study aimed to identify the factors that influence the intention to adopt this role by family medicine residents and to compare their intention related to individual versus collective type actions. A cross sectional descriptive study was designed using a web questionnaire based on the theory of planned behaviour elaborated by Ajzen. The questionnaire was sent by email in 2013 to all family medicine residents from francophone programs in Quebec. Sixty-eight residents (7%) completed the questionnaire. The importance of the role for participants and social pressure were particularly influential factors regarding the intention to adopt behaviours associated with the health advocate role (26% variance explained p < 0.001 and 48% p < 0.001 respectively). Residents also had a more favourable attitude towards individual type actions (mean =72,8% vs 58,3%, p<.05), and perceived more pressure to adopt them (mean = 82.7% vs 74.3%, p<.05). They perceived less control towards collective-type actions (mean = 79.8% vs 84.6%, p<.05). Since different types of action are associated with the health advocate role, intention to adopt the role can be influenced by different factors. Future revisions of the role should take into account the implicit duality of the role focusing on both individual and collective type actions and pedagogical interventions should be tailored accordingly.

International Telemetering Conference Proceedings / October 20-23, 2003 / Riviera Hotel and Convention Center, Las Vegas, Nevada / It is widely recognized that telemetry channels, particularly airborne channels, are afflicted by multipath propagation effects. It has also been shown that adaptive equalization can be highly effective in mitigating these effects. However, numerous other factors influence the behavior of adaptive equalization, and the type of modulation employed is certainly one of these factors. This is particularly true on modulations that exhibit different operating bandwidths. Computer simulations using the Constant Modulus Algorithm (CMA) have recently been reported for PCM/FM, ARTM Tier 1 SOQPSK, and Tier II SOQPSK. These encouraging results have led to a hardware implementation of a CMA equalizer. This paper presents the latest results from this work.

International Telemetering Conference Proceedings / October 21, 2002 / Town & Country Hotel and Conference Center, San Diego, California / This paper will present the results of some experiments with non-coherent, single symbol detection of pulse code modulation (PCM)/frequency modulation (FM) where the receiver intermediate frequency (IF) bandwidth is much wider than the bit rate. The experiments involved varying the peak deviation and measuring the bit error probability (BEP) at various signal energy per bit to noise power spectral density ratios (E(b)/N(o)). The experiments showed that the optimum peak-to-peak deviation was about 0.7 to 0.8 times the –3 dB IF bandwidth and that the E(b)/N(o) required for a given BEP increased as the ratio of IF bandwidth to bit rate increased. Further, bi-phase-level/FM performed slightly better than non-return-to-zero-level (NRZ-L)/FM with an ac coupled RF signal generator and IF bandwidths much wider than the bit rate.

ITC/USA 2010 Conference Proceedings / The Forty-Sixth Annual International Telemetering Conference and Technical Exhibition / October 25-28, 2010 / Town and Country Resort & Convention Center, San Diego, California / This paper compares telemetry link performance of the PCM/FM waveform when simultaneously transmitting in two different frequency bands, S-Band and C-Band. A description of the aircraft and ground station is presented followed by flight test results. These results are presented in the form of received signal strength and accumulated bit errors, versus time and link availability, over the flight paths. Conclusions are drawn based upon the presented flight test results.

International Telemetering Conference Proceedings / October 17-20, 1994 / Town & Country Hotel and Conference Center, San Diego, California / This paper discusses the design and performance of the FM/PM/BPSK "personal computer card-based" receiver. In PSK, a carrier recovery technique must be used for signal demodulation. Costas loop is a well known method and is the basis in the design of the BPSK demodulation. A new design approach employing digital Box Car arm filters is used to improve receiver performance and flexibility. Detail design and performance of the digital Costas loop will be explored in a later section. A classical technique is employed for Phase demodulation with the use of tracking Phase Lock Loop. Frequency demodulation is designed around a simple, single FM discriminator IC.

International Telemetering Conference Proceedings / October 25-28, 1993 / Riviera Hotel and Convention Center, Las Vegas, Nevada / System performance can be ascertained via a number of parameters; one of which is Signal-to-Noise ratio (SNR). SNR is the ratio of the value of the signal to the value of the noise. It is generally expressed in decibels and usually a function of the system bandwidth. Another measure of performance is the Noise-Power ratio (NPR). NPR is the ratio of the noise level within a specific measurement channel when noise is applied to all channels, to the level that is measured within the specific channel with noise applied to all of the channels but not the specific channel.

International Telemetering Conference Proceedings / October 20-23, 2003 / Riviera Hotel and Convention Center, Las Vegas, Nevada / This paper will present equations for calculating the minimum recommended frequency separation of two digital telemetry signals. The signals can be filtered continuous phase frequency shift keying (CPFSK), multi-h continuous phase modulation (CPM) [1], shaped offset quadrature phase shift keying-Telemetry Group (SOQPSK-TG, aka SOQPSK-A*) [2], or Feher’s patented quadrature phase shift keying FQPSK-B (or FQPSK-JR [3]). The equations are based on measured data in an adjacent channel interference (ACI) environment for filtered CPFSK (aka PCM/FM), multi-h CPM (or CPM for short), SOQPSK-TG, FQPSK-JR, and FQPSK-B. This paper is an extension of my 2001 and 2002 International Telemetering Conference papers on this topic [4, 5]. The quantity measured was bit error probability (BEP) versus frequency separation at a given signal energy per bit to noise power spectral density ratio (Eb/No). The interferers were CPFSK, CPM, SOQPSK-TG or FQPSK-B (-JR) signals. The results presented in this paper will be for a desired signal bit rate of 1 to 20 Mb/s, one interferer 20 dB larger than the desired signal (a few tests included two interferers), and various center frequency spacings, interfering signals, receivers, and demodulators. The overall ACI test effort has collected data sets at several bit rates and with one and two interferers. The results will be useful to system designers and range operators as they attempt to maximize the number of Mb/s that can be simultaneously transmitted with minimal interference in the telemetry bands.

No description available.

International Telemetering Conference Proceedings / October 25-28, 1999 / Riviera Hotel and Convention Center, Las Vegas, Nevada / The U.S. Army Redstone Technical Test Center (RTTC) uses telemetry as a vital part of its data acquisition and analysis for electromagnetic environmental effects developmental testing of U.S. Army weapon systems. Testing in an electromagnetic environment poses several unique challenges. These challenges have resulted in the development of highly customized telemetry and data acquisition systems. This paper discusses the design and integration of past and current telemetry needs to incorporate real-time or near real-time simulations or scene generations into the testing process.

International Telemetering Conference Proceedings / October 26-29, 1998 / Town & Country Resort Hotel and Convention Center, San Diego, California / Incidental Frequency Modulation (IFM) products in telemetry transmitters can be a significant cause of bit errors in received Pulse Code Modulation/Frequency Modulation (PCM/FM) telemetry data. Range Commanders Council (RCC) and other documents give little or no guidance as to acceptable levels of IFM for telemetry applications. The expected higher vibration levels of future high velocity missile systems means that IFM levels are likely to be higher than previously encountered. This paper presents measured data on Bit Error Rate (BER) versus IFM levels at given Signal to Noise Ratios (SNR’s) for PCM/FM telemetry systems. The information presented can be utilized with BER versus SNR plots in the Telemetry Applications Handbook, RCC Document 119, to determine the additional link margin required to minimize IFM effects on telemetry data quality.