Operator's manual : radio receiver R-390A/URR.

"19 January 1961."

Field and depot maintenance manual : radio receiver R-390A/URR.

"8 December 1961."

Organizational maintenance manual : radio receiver R-390A/URR.

"10 February 1961."

Organizational maintenance manual : radio receiver R-392/URR.

"27 December 1960."

Operators and organizational maintenance manual : radio receiver direction finder set AN/PRD-11 (NSN 5825-01-188-3435).

Includes index.

Organizational, direct support, and general support maintenance : radio receiver R-1963/ARN (5826-01-015-1574).

"December 1977."

ML estimator and hybrid beamformer for multipath and interference mitigation in GNSS receivers

This paper addresses the estimation of the code-phase(pseudorange) and the carrier-phase of the direct signal received from a direct-sequence spread-spectrum satellite transmitter. Thesignal is received by an antenna array in a scenario with interferenceand multipath propagation. These two effects are generallythe limiting error sources in most high-precision positioning applications.A new estimator of the code- and carrier-phases is derivedby using a simplified signal model and the maximum likelihood(ML) principle. The simplified model consists essentially ofgathering all signals, except for the direct one, in a component withunknown spatial correlation. The estimator exploits the knowledgeof the direction-of-arrival of the direct signal and is much simplerthan other estimators derived under more detailed signal models.Moreover, we present an iterative algorithm, that is adequate for apractical implementation and explores an interesting link betweenthe ML estimator and a hybrid beamformer. The mean squarederror and bias of the new estimator are computed for a numberof scenarios and compared with those of other methods. The presentedestimator and the hybrid beamforming outperform the existingtechniques of comparable complexity and attains, in manysituations, the Cramér–Rao lower bound of the problem at hand.

Design Techniques for Sigmadelta based ADC for Wireless Applications

Analog-to digital Converters (ADC) have an important impact on the overall performance of signal processing system. This research is to explore efficient techniques for the design of sigma-delta ADC,specially for multi-standard wireless tranceivers. In particular, the aim is to develop novel models and algorithms to address this problem and to implement software tools which are avle to assist the designer's decisions in the system-level exploration phase. To this end, this thesis presents a framework of techniques to design sigma-delta analog to digital converters.A2-2-2 reconfigurable sigma-delta modulator is proposed which can meet the design specifications of the three wireless communication standards namely GSM,WCDMA and WLAN. A sigma-delta modulator design tool is developed using the Graphical User Interface Development Environment (GUIDE) In MATLAB.Genetic Algorithm(GA) based search method is introduced to find the optimum value of the scaling coefficients and to maximize the dynamic range in a sigma-delta modulator.

Desenvolvimento de um sistema de aquisição de dados georreferenciados e de telemetria para monitoramento de parâmetros físicos em sistemas de irrigação

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Operator and organizational maintenance manual including repair parts and special tools lists : radio set AN/PRC-25 (NSN 5820-00-857-0759) (including receiver-transmitter radio RT-505/PRC-25) (5820-00-857-0934).

Includes indexes.

Direct support and general support maintenance repair parts and special tools list for receiver, radio frequency, Weinschel, model VM-4A, NSN 4931-01-041-1564 and tracking oscillator, Weinschel, model VM-4A/H0-2, NSN 6695-01-102-4342.

Includes index.

Direct support and general support maintenance manual : receiver radio frequency noise measurement equipment including test set, radio frequency noise TS-3376/G (NSN 6625-00-237-2406), monitor, noise temperature ID-1915/G (NSN 5895-00-241-9367) for satellite communication terminal AN/FSC-78(V).

"June 1978."

Direct support and general support maintenance repair parts and special tools list (including depot maintenance repair parts and special tools) for receiver-transmitter radio RT-246/VRC, RT-246A/VRC, (NSN 5820-00-892-0623).

"31 January 1983."

Direct support and general support maintenance repair parts and special tools lists (including depot maintenance repair parts and special tools) for receiver-transmitter, radio RT-505/PRC-25 (NSN 5820-00-857-0934).

Includes index.

Direct support and general support maintenance repair parts and special tools list (including depot maintenance repair parts and special tools) for receiver-transmitter radio RT-524/VRC and RT-524A/VRC (NSN 5820-00-892-0622).

Includes indexes.