The Conformal C-Band/Multi-band Antenna project will support the AWS-3 auction by providing the technology to integrate C-Band or multi-band telemetry(TM) antennas on test articles such as missiles, weapons, or aircraft. These test articles would then provide C-Band or multi-band TM data to ground station receivers that are relocated to the C-Band frequency range through the AWS-3 Spectrum Relocation Fund program. This project would advance the technology of antennas in the C-Band region for test article TM integration. Successful use of C-Band and Multi-Band antennas for aeronautical mobile telemetry (AMT) on test and training ranges is dependent on the advancement of key technologies. This paper will detail the technology areas being matured by this project as well as the capabilities to be demonstrated.

The purpose of this paper is to show the integration of the transmission gain values of a telemetry transmission antenna according to its relative position and integrate them in the C band link budget, in order to obtain an accuracy vision of the link. Once our C band link budget was fully performed to model our link and ready to work in real time with several received values (GPS position, roll, pitch and yaw) from the aircraft and other values from the Ground System (azimuth and elevation of the reception telemetry antenna), it was necessary to avoid a constant value of the transmitter antenna and estimate its values with better accuracy depending of the relative beam angles between the transmitter antenna and receiver antenna. Keeping in mind an aircraft is not a static telecommunication system it was necessary to have a real time value of the transmission gain. In this paper, we will show how to perform a real time link budget (C band).

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 26-29, 1998 / Town & Country Resort Hotel and Convention Center, San Diego, California / In this paper, it is introduced that a C-Band mobile telemetry system designed for the satellite telemetry task. It can provide a wide range of bit rate and different code type and frame format which is completely set up by user in advance, to meet the requirements needs in different satellites. The PCM-PSK-PM signal and the PPM-MFSK-PM signal can be received and demodulated at the same time. Single channel monopulse technique is employed for automatic tracking. Angle calibration and angle tracking are performed in this system. Real-time data processing, displaying, testing of bit error rate and post-flight analyses is performed by PC type computer. All key components of the system may be programmed.

ITC/USA 2011 Conference Proceedings / The Forty-Seventh Annual International Telemetering Conference and Technical Exhibition / October 24-27, 2011 / Bally's Las Vegas, Las Vegas, Nevada / The Isotropic radiator, a device capable of radiating energy evenly in all directions is an abstraction, itsʼ real counterpart is called an omnidirectional (omni) antenna. The omnidirectional antenna is found on many vehicles. Ideally, only one receiving system is ever needed to acquire an omni, no matter the vehicle orientation, given the range is not excessive. There are trade-offs with antenna efficiency, with gain typically around -15 dBi (95% coverage). This paper proposes abandoning this paradigm. If a vehicle knows where the ground is why radiate energy up into the sky, where there are no receiving stations. This can be achieved by integrating some instrumentation with a discrete antenna array so that it radiates only from selected elements. The accuracy required is modest, an inexpensive Inertial Measurement Unit (IMU) is sufficient to improve link margin by 10, 20dB or more. These numbers are credible, as outlandish as they are, and substantiated in this paper. Ironically, from the ground this non-isotropic antenna looks very isotropic. Of significant benefit, this Smarter Antenna concept enables spatial discrimination and with that comes spectrum efficiency gains beyond that achieved by other means including advanced modulation formats.

ITC/USA 2011 Conference Proceedings / The Forty-Seventh Annual International Telemetering Conference and Technical Exhibition / October 24-27, 2011 / Bally's Las Vegas, Las Vegas, Nevada / A novel dual-band S and C band antenna for high-performance autotracking applications is described. The antenna provides simultaneous dual band coverage for targets with circular or linear polarization. A vertex mounted C-band multi-mode common aperture feed is added in a Cassegrain configuration augmenting the existing ViaSat patented [1-4] ESCAN® S-band prime focus feed. A dichroic subreflector is also added allowing simultaneous dual band operation for the prime focus and Cassegrain configurations with minimal interaction. Existing S-band antennas are easily upgraded for dual band capability with only the additions of the vertex mounted C-band feed and dichroic subreflector.

Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2017-02-22T20:14:46Z No. of bitstreams: 1 2016 - Diego Mattos Penedo.pdf: 4081734 bytes, checksum: 3e13fd4d6f8b8c4d8d31a05fefa2ba14 (MD5) / Made available in DSpace on 2017-02-22T20:14:46Z (GMT). No. of bitstreams: 1 2016 - Diego Mattos Penedo.pdf: 4081734 bytes, checksum: 3e13fd4d6f8b8c4d8d31a05fefa2ba14 (MD5) Previous issue date: 2016-02-26 / CAPES / Several studies have been conducted with capuchin monkeys (Sapajus and Cebus) in order to understand their evolutionary histories by South and Central America. Genetic analysis, in association with the coat coloration, assist in the identification of the relationships between species and show the diversity presented by both genera. In Brazil, Sapajus species are predominantly distributed, being S. nigritus endemic to the Atlantic Forest and characteristic of southeast. At Ilha da Marambaia, an important area with forest remaining in the state of Rio de Janeiro, there is a population of capuchin monkeys, but without previous study. The objective of this study was to characterize the population of capuchin monkeys at this region through phenotypic and genetic analyzes, including the coat coloration, the sequencing of the mitochondrial gene cytochrome oxidase II and the evaluation of karyotype with conventional staining and C-band. Interviews with residents and military personnel in the region, were also carried out, in order to identify the possible origin and isolation of the primates. Twelve specimens, eight males and four females, were analyzed. The coat features were consistent with that described for S. nigritus, with coloration varying from brown to blackish on the back, limbs, tail and top of the head, in addition to yellow chest and face with white or light yellow, contrasting. Tufts at the top of the head were seen in adults, being greater in females. The analysis of mitochondrial gene revealed closer proximity of this population with S. xanthosternos, which occurs at Bahia, and then with S. cay that occurs in parts of Brazil and Paraguay. The greatest divergence was in relation to the population of S. nigritus in Argentina. The karyotype was consistent with that described for Sapajus species, with 2n = 54 (XX or XY), although the morphology of the sex chromosome Y, submetacentric, was different from that commonly described in the literature (acrocentric). Presented intercalary C-band the chromosome pairs 4, 11, 12 and 17. The par 11 presented three polymorphisms, all interstitial to euchromatin and diversified from each other by deletion and inversion processes. The pattern of this pair is different from that described, as a small acrocentric, to S. nigritus in populations of Argentina, with banding similar to that considered specific for S. xanthosternos. According to the survey, the population of primates seems to be native of the island and is currently isolated. According to the genetic divergences found, the population of Ilha da Marambaia may have maintained ancestral characteristics. The C-band pattern of the pair 11 indicates that the polymorphism described for populations of Argentina does not correspond to the entire distribution of S. nigritus. These data may help to understand the diversity and evolution of Sapajus, since this would have radiated from southeastern Brazil. Further studies with populations from other regions of Rio de Janeiro are needed to verify the C-band pattern presented for the pair 11 as well as the genetic relationships demonstrated by the mitochondrial gene for the population of Ilha da Marambaia. / Diversos estudos v?m sendo realizados com macacos-prego e caiararas (Sapajus e Cebus) de modo a entender suas hist?rias evolutivas pelas Am?ricas do Sul e Central. An?lises gen?ticas, em associa??o ?s caracter?sticas de pelagem, auxiliam na identifica??o das rela??es entre as esp?cies e evidenciam a diversidade apresentada por ambos os g?neros. No Brasil, est?o distribu?das predominantemente as esp?cies de Sapajus, sendo S. nigritus end?mica de Mata Atl?ntica e caracter?stica do sudeste. Na Ilha da Marambaia, importante ?rea com remanescente florestal no estado do Rio de Janeiro, existe uma popula??o de macacos-prego, sem nenhum estudo anterior. O objetivo deste trabalho foi caracterizar a popula??o de macacos-prego dessa regi?o atrav?s de an?lises fenot?picas e gen?ticas, incluindo o padr?o de pelagem, o sequenciamento do gene mitocondrial Citocromo Oxidase II e a avalia??o do cari?tipo com colora??o convencional e bandamento de heterocromatina constitutiva (banda C). Foram realizadas, tamb?m, entrevistas com moradores e militares da regi?o, de modo a identificar a poss?vel origem e isolamento dos primatas. Foram analisados doze esp?cimes, oito machos e quatro f?meas. As caracter?sticas de pelagem coincidiram, de modo geral, com descrito para S. nigritus, sendo observada colora??o variando de marrom a enegrecida no dorso, membros, cauda e topo da cabe?a, al?m de peito amarelo e face branca ou amarelo-clara, contrastante. Tufos de pelos no topo da cabe?a foram observados nos adultos, sendo maiores nas f?meas. A an?lise do gene mitocondrial revelou maior proximidade da popula??o da ilha com S. xanthosternos, que ocorre na Bahia, e em seguida com S. cay, que ocorre em parte do Brasil e no Paraguai. A maior diverg?ncia apresentada foi em rela??o a popula??es de S. nigritus da Argentina. A an?lise do cari?tipo revelou padr?o condizente com as esp?cies de Sapajus, com 2n = 54 (XX ou XY), embora a morfologia do cromossomo sexual Y, submetac?ntrica, fosse divergente do comumente descrito na literatura (acroc?ntrica). Apresentaram banda C intercalar os pares cromoss?micos 4, 11, 12 e 17. O par 11 mostrou-se com tr?s polimorfismos, todos intercalares e diversificados entre si por processos de dele??o e invers?o. O padr?o deste par foi divergente do descrito, como um pequeno acroc?ntrico, para S. nigritus em popula??es da Argentina, apresentando bandamento semelhante ao considerado espec?fico de S. xanthosternos. Segundo o levantamento realizado, a popula??o de primatas parece ser natural da ilha, estando provavelmente isolada. De acordo com as diverg?ncias gen?ticas encontradas, a popula??o da Ilha da Marambaia pode ter conservado caracter?sticas ancestrais. O padr?o de banda C do par 11 indica que o polimorfismo descrito para popula??es da Argentina pode n?o corresponder a toda a distribui??o de S. nigritus. Estes dados podem auxiliar no entendimento da diversidade e evolu??o das esp?cies de Sapajus, uma vez que este teria irradiado a partir do sudeste brasileiro. Novos estudos com popula??es de outras regi?es do Rio de Janeiro s?o necess?rios para se averiguar o padr?o de bandamento de heterocromatina apresentada para o par 11, bem como as rela??es gen?ticas demonstradas pelo sequenciamento do gene mitocondrial para a popula??o da Ilha da Marambaia.

ITC/USA 2014 Conference Proceedings / The Fiftieth Annual International Telemetering Conference and Technical Exhibition / October 20-23, 2014 / Town and Country Resort & Convention Center, San Diego, CA / This paper describes a system framework for a multi-band, multi-mode software defined radio (MBMM SDR) being developed for next-generation telemetry applications. The system framework consists of the multi-band front-end (MBFE), the multi-mode digital radio (MMDR), and the configuration and control (C2) sub-systems. The MBFE consists of an L/S/C-band transceiver architecture that provides wideband operation, band selection, and channel tuning. The MMDR consists of the software and firmware components for high-speed digital signal processing for the telemetry waveforms. Finally, the C2 consists of the software and hardware components for system configuration, control and status. The MBFE is implemented as a standalone hardware sub-system, while the MMDR and C2 are integrated into a single hardware subsystem that utilizes state-of-the-art system-on-chip (SoC) technology. Design methodologies, hardware architectures, and system tradeoffs are highlighted to meet next-generation telemetry requirements for improved spectrum efficiency and utilizations. Approved for public release; distribution is unlimited (412TW-PA-14281).

ITC/USA 2013 Conference Proceedings / The Forty-Ninth Annual International Telemetering Conference and Technical Exhibition / October 21-24, 2013 / Bally's Hotel & Convention Center, Las Vegas, NV / Systems using single carrier modulations for flight test transmissions perfectly fit noisy and time selective channels. However, the densification of the airport environment now makes the aero channel also frequency selective due to multiple reflections on surrounding buildings, especially while taxiing and taking off. Obviously, this has a direct consequence on hardware resources and user data rates. In such a context, COFDM represents an appealing solution thanks to its inherent robustness to multipath fading channels. But a direct application of an off-the-shelf COFDM standard is not straightforward as these standards are designed for specific channels whose characteristics are quite different from the aero one. That is why we made an experiment at Toulouse-Blagnac airport to jointly sound the channel and qualify a COFDM waveform. This paper then describes the construction of the waveform and the results of the channel sounding. From this, different standard paradigms are compared.

ITC/USA 2012 Conference Proceedings / The Forty-Eighth Annual International Telemetering Conference and Technical Exhibition / October 22-25, 2012 / Town and Country Resort & Convention Center, San Diego, California / A new common aperture autotracking C-band feed, specifically designed to accurately track fast moving targets such as the Lance missile, is reviewed. Measured data demonstrates exceptional tracking modulation required for good tracking performance while simultaneously providing excellent data channel performance for high G/T over the entire 4.40-5.25 GHz band. The new patent applied for feed design allows users to maintain existing L/S-band capability with a cost effective field upgrade which adds high performance C-band capability to an existing telemetry tracking system.