Aerospace and Defense Operations Unit

Operations, Japan

Aerospace and Defense Operations Unit

Operations, Japan

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Sasaki T.,Aerospace and Defense Operations Unit | Kurashina S.,Aerospace and Defense Operations Unit
NEC Technical Journal | Year: 2010

Compared to conventional cooling type infrared detectors, uncooled infrared detectors are smaller and less expensive and it is for that reason aimed to expand their fields of applications. The targeted fields include those of security and thermography. This paper introduces the technologies used for NEC's uncooled infrared detectors together with examples of their applications. In addition, it introduces the technologies used for uncooled terahertz detectors that have been newly developed based on technologies used hitherto for uncooled infrared detectors and to suggest future fields of application for the terahertz detectors.


Okamoto H.,Aerospace and Defense Operations Unit | Kasai Y.,Aerospace and Defense Operations Unit | Nagao M.,Aerospace and Defense Operations Unit
NEC Technical Journal | Year: 2011

Earth images observed from a satellite (satellite data) contain distortions due to the characteristics of the satelliteborne sensors, which makes it necessary to correct the satellite data with a data processing system so that the users can utilize the data effectively. The data processing system has previously been developed individually for each satellite or per sensor but, in the future, it is desirable to unify the data processing system into a single set of packages (image processing PKGs) that can be used commonly regardless of the satellites and sensors installed in them. NEC is planning to promote the use of satellite data by applying the common image processing package to the satellite data processing system.


Matsuo K.,Aerospace and Defense Operations Unit
NEC Technical Journal | Year: 2011

NEC set up the project "NEC Space System Business Vision and Space System Business Roadmap" in 2010. As a part of this undertaking, NEC is able to offer "Comprehensive Space Usage Systems" by fusing space technologies and IT/Network technologies. The "Comprehensive Space Usage Systems" are to provide solutions for our users to solve issues not only by providing products of space technologies but also by providing technologies that are capable of fusing space technologies and other technologies. This paper introduces trends in the next generation platforms, such as cloud systems and also describes strategies for space system usages based on cloud systems, as well as for related issues that are yet to be solved.


Hayashi N.,Aerospace and Defense Operations Unit
NEC Technical Journal | Year: 2011

The H-IIA/H-IIB are the main launch vehicles domestically developed in Japan. With 14 consecutive successful launches among a total of 20 attempts, they have now acquired international reliance and are improving their competitiveness. NEC is involved in this project with the guidance control computer (GCC). As part of development for dealing with component depletion, NEC is developing a new GCC featuring high speed, high performance, compact size and light weight by adopting a new MPU. This paper introduces the circumstances of the development of past computers for launch vehicle together with the features, functions and performance of the new GCC and the efforts NEC will make with regard to computer systems for launch vehicle in the future.


Kuwao F.,Defense Systems | Otsuka A.,Defense Systems | Tanaka T.,Defense Systems | Kumagai H.,Defense Systems | And 2 more authors.
NEC Technical Journal | Year: 2011

Japan has developed its first manned space facility by completing the Japan Experiment Module (JEM), KIBO for the International Space Station. In this development, NEC was in charge of systems including the Inter-orbit Communication System and Robot Arm System as well as the JEM Control Processor, various experiment devices and the Operations Control System. Putting the first priority on the safety of astronauts at the same time as pursuing operability, universality and versatility, NEC developed each piece of equipment by adding new manned space development requirements to the existing space development technologies and by coordinating them into the uniquely Japanese technologies. At present, the JEM is monitored and is operated on 24-hour schedules for performing various space experiments.


Oshima T.,Defense Systems | Sasaki T.,Aerospace and Defense Operations Unit
NEC Technical Journal | Year: 2011

Launched successfully on May 21, 2010, PLANET-C (AKATSUKI) is Japan's first inner planet exploration spacecraft. Although it failed in the Venus orbit insertion mission, it is still continuing the flight and it is now targeting a successful insertion attempt in six years time. This paper introduces the system design of the PLANET-C explorer and its associated technologies.


Ikegami S.,Defense Systems | Kase T.,Aerospace and Defense Operations Unit
NEC Technical Journal | Year: 2011

Beginning with the "one small step" of commander Armstrong of Apollo 11 in 1969, manned lunar exploration had been halted since Apollo 17 in 1972. In September 14, 2007, Japan restarted a new lunar exploration activity by launching the lunar orbital spacecraft SELENE (KAGUYA). This paper introduces the main specifications of the KAGUYA mission for which NEC acted as the prime coordinator, being in charge of the mission from the development to the operational stages. The operational process from the launch to the end of the mission is also discussed, together with the technology used in the laser altimeter that has also been developed by NEC.

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