DATA MODUL is expanding its display portfolio with a new 11.6″ high-resolution Full HD and 10.4” Industry Standard XGA night vision displays (NVIS display) that are ideally suited for aerospace applications. Night Vision Imaging Systems (NVIS) displays have a very high sensitivity to light of wavelengths from 600 nm to 930 nm (from red/orange to […]
Aerospace and Defense
Dual-band helical antennas for GPS/GNSS incorporate out-band filtering
Tallysman Wireless announces that it has added the housed HC885XF and embedded HC885EXF dual-band (GPS/QZSS L1/L5, GLONASS G1/G3, Galileo E1/ E5a/b, BeiDou B1/B2/B2a + L-Band corrections services) eXtended Filtering (XF) antennas to its industry-leading line of helical antennas. Historically, dual-frequency antennas and receivers commonly supported GPS L1 and L2 and GLONASS G1 and G2. In […]
64-Mbit memory devices now available in 50 grad total ionizing does tolerance
Designers of spaceflight-qualified systems have a great need to reduce development time, cost, and risk in their systems. Microchip Technology Inc. proposed the concept of starting with Commercial-Off-The-Shelf (COTS) devices and then replacing them with space-qualified, Radiation-Tolerant (RT) equivalent parts. Microchip announces it has extended its family of COTS-based, RT SuperFlash options for these applications […]
2 Mb density F-RAM rad-hardened for extreme environments
Infineon Technologies LLC announced the availability of the space industry’s first radiation-hardened (rad-hard), serial interface Ferroelectric RAM (F-RAM) for extreme environments. The new devices deliver unsurpassed reliability and data retention and are more energy-efficient than non-volatile EEPROM and serial NOR Flash devices for space applications. The addition of a QML-V qualified F-RAM to Infineon’s memory […]
The Doppler effect: From highly ridiculed to absolutely indispensable, Part 2
Originally derided as scientifically erroneous, the Doppler effect is now a vital tool in all aspects of technology, ranging from microscopic to galactic. Doppler, back in the day – and now The explanation of the Doppler effect is almost intuitive to us, with our understanding of wave phenomena along with available frequency sources and measurement […]
The Doppler effect: From highly ridiculed to absolutely indispensable, Part 1
Originally derided as scientifically erroneous, the Doppler effect is now a vital tool in all aspects of technology, ranging from microscopic to galactic. Engineers are familiar with many “effects” ranging from widely used ones such as the piezoelectric effect to somewhat lesser-known ones such as the RF skin effect and even less-familiar ones such as […]
Satellite-based search-and-rescue, Part 4: Enhancements, even the moon
A sophisticated satellite-based system allows pinpointing a person’s location in a dangerous, isolated situation on land or sea. It thus hopefully speeds their subsequent rescue in many cases. This final part looks at the next generation of system satellites and some ideas for a similar lunar system. The MEOSAR satellites The most recent enhancement to […]
Satellite-based search-and-rescue, Part 3: Space segment and satellites
A sophisticated satellite-based system allows pinpointing a person’s location in a dangerous, isolated situation on land or sea. It thus hopefully speeds their subsequent rescue in many cases. Cospas-Sarsat uses three types of satellites: low-Earth orbit search-and-rescue (LEOSAR), medium-Earth orbit search-and-rescue (MEOSAR), and high-altitude geosynchronous orbit search-and-rescue (GEOSAR satellites). There are five LEOSAR, seven GEOSAR, […]
Raspberry Pi-based computer meets mil standards for defense and aerospace apps
Curtiss-Wright’s Defense Solutions introduced the Parvus DuraCOR Pi, the embedded industry’s first Raspberry Pi (RPi) powered mission computer for defense and aerospace applications. The ultra-small form factor (USFF) DuraCOR Pi, fully ruggedized to deliver optimal performance in harsh operating environments, is the first mission computer to deliver 100% compatibility with the vast Pi Developer Ecosystem in a fully […]
Satellite-based search-and-rescue, Part 2: Ground segment and transmitter beacons
A sophisticated satellite-based system allows pinpointing a person’s location in a dangerous, isolated situation on land or sea. It thus hopefully speeds their subsequent rescue in many cases. Over one million emergency beacons are in use worldwide, all operating at 406 MHz (with some exceptions, called out below). Cospas-Sarsat does not manufacture or sell beacons. […]