Engineering topics
Perret, J.
Publications and source records attributed to Perret, J..
Flight Qualifying SoC Devices
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The NASA Spacecraft Transponding Modem
A new deep space transponder is being developed by the Jet Propulsion Laboratory for NASA. The Spacecraft Transponding Modem (STM) implements standard transponder functions and some of the command and telemetry channel service functions that have resided in spacecraft Command/Data Subsystems.
The Status of Ka-band Communications For Future Deep Space Missions
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The Status of Ka-Band Communications for Future Deep Space Missions
Over the past decade, the Jet Propulsion Laboratory's Telecommunications and Mission Operations Directorate has invested in a variety of technologies, targeted at both the flight and ground sides of the communications link, with the goal of developing a Ka-band (32 GHz) communications capability for future deep space missions.
Cassini Mission: Deep Space Telecommunications Into the Next Century
This paper will describe the scientific objectives of the missions (Cassini's) and then show the designs of the telecommunications assemblies and systems that make this tremendous accomplishment possible.
SEM analysis of ionizing radiation effects in an analog to digital converter /AD571/
The considered investigation is concerned with the study of the total-dose degradation mechanisms in an IIL analog to digital (A/D) converter. The A/D converter is a 10 digit device having nine separate functional units on the chip which encompass several hundred transistors and circuit elements. It was the objective of the described research to find the radiation sensitive elements by a systematic search of the devices on the LSI chip. The employed technique using a scanning electron microscope to determine the functional blocks of an integrated circuit which are sensitive to ionizing radiation and then progressively zeroing in on the soft components within those blocks, proved extremely successful on the AD571. Four functional blocks were found to be sensitive to radiation, including the Voltage Reference, DAC, IIL Clock, and IIL SAR.