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Here’s an example of the progression of raw digital numbers to non-uniformity-corrected imagery and, finally, flicker-compensated imagery for a single dark scene. This represents an essential step for calibrating satellite imaging sensors. #remotesensing #earthobservation #spacetechnology #satellite #newspace #smallsat #satellitedata #spacetech #cubesat #satelliteimagery

An example of the progression of raw digital numbers to non-uniformity-corrected imagery and, finally, flicker-compensated imagery for a single dark scene. This represents an essential step for calibrating satellite imaging sensors. #remotesensing #earthobservation #spacetechnology #satellite #newspace #smallsat #satellitedata #spacetech #cubesat #satelliteimagery

Radio connections for uncrewed systems are going through significant changes. ➡️Cognitive radio is increasingly being adopted, using software-defined radio to analyse the local spectrum and find areas that are clear, reducing the power required and extending battery life. ➡️Mobile ad-hoc networks are being used with swarms of UAVs to enhance radio connectivity, sharing data about the spectrum across a wide area. ➡️New, lightweight antenna designs with multiple feeds and beamforming are also improving the performance of radio links in the air, allowing for longer range connections beyond the visual line-of-sight or reducing the power needed for close work. ➡️Meanwhile, machine learning and artificial intelligence are being adopted in radio systems to boost cognitive architectures and the efficiency of connections, especially for high-bandwidth video. ➡️At the same time, millimetre-wave radio technology (mmWave) is maturing to provide higher-bandwidth video links that are less susceptible to interference. The technology is maturing to be cost effective for vehicles on the ground and for high-altitude pseudo satellites, where power is a critical consideration. Read the full article on this from Uncrewed Systems Technology https://bit.ly/49zy9xq #mmWave #uncrewedsystems #radiotech #defensetech

Coherent Two-Photon Atmospheric Lidar Based on Up-Conversion Quantum Erasure The Hong-Ou-Mandel (HOM) effect, also called two-photon interference, which is pivotal in quantum information processing, serves as the foundation for our coherent two-photon wind detection method, achieving time-frequency discrimination. Our method capitalizes on the complete erasure of phase and color distinctions with up-conversion detectors, allowing for the observation of HOM interference among independently sourced photons without necessitating delay tuning or active synchronization. The integration of quantum erasure enhances the bandwidth in both space-time and frequency domains, paving the way for ultrafast, continuous velocity detection up to tens of km/s. The demonstration uses just 14% pulse energy of previous levels, enabling a wind detection range up to 16 km, marking a quantum leap in remote sensing capabilities. https://lnkd.in/dsyPixRT

The first commercial hyperspectral satellite for self-service tasking! The last week of April 2024 is special. Customers on the Eartheye Space's Sat-Tasking platform can ‘task’ the first commercial hyperspectral satellite. Having offered the first thermal infrared and greenhouse gas sensors for direct tasking, Eartheye Space is again at the forefront to bring yet another sensor as the first for direct tasking. This time, it is the tens of bands with ~5m resolution hyperspectral imaging.   Customers can combine hyperspectral imaging with other sensor modalities on the platform in the same tasking workflow–akin to Uber Eats for sensors/ satellites–to solve wicked problems (more in another post). We will soon deliver information feeds based on the hyperspectral data and fuse them with other sensor modalities to deliver use cases of interest to early customers. With access to over 300 satellites with multiple sensor modalities such as #multispectral, #radar, #thermalinfrared, #greenhousegas, #ais, #rfcomms, #fullmotionvideo for self-service tasking, Eartheye Space has brought the affordability of direct tasking to the new lows.     We offer Sat-Tasking at an affordable 𝐔$5000 𝐩𝐞𝐫 𝐲𝐞𝐚𝐫 subscription for any organization–big or small–as long as the registrant passes our stringent KYC (Know Your Customer) process. Do you have the chops to task satellites? Register at https://lnkd.in/gKrShWaX Tip: The KYC process does not require any nerdy prerequisites. #earthobservation #remotesensing #b2bsaas #satellites #sensors #tasking #geospatial #information Image credit: esri.com

🚀 The #INPHOMIR Project addresses the challenges hindering innovative technologies like nano-satellite-based space navigation and autonomous navigation. Learn more about our objectives and methodologies: https://bit.ly/4dbqmci #Photonics #Research #EUInnovation

FEATURED PRODUCT: Teem Photonics offers low-loss pigtailed PIC devices with five weeks turn-around time, drastically accelerating development speed and enabling a shorter path to series production. Custom or standard functions include AWGs (crosstalk > -30 dB), MZIs (modulation depth > 25 dB), splitters, zero crosstalk crossings. Applications cover telecom, sensing, lidar, and quantum technologies. #photonics

Big news from Chilas Lasers! They’ve been busy upgrading their lineup of narrow-linewidth, widely tunable lasers — and they can’t wait to showcase them for the first time at Photonics West 2025, where they are exhibiting under the NL Pavilion organised by PhotonDelta and PhotonicsNL. A couple of weeks ago, they introduced the new Chilas COMET, a Swept Source laser, perfectly suited for a large range of sensing applications like structural health monitoring using Fiber Bragg gratings, molecular detection using ring resonators, and LiDAR remote sensing. Now, they are bringing the rest of their upgraded laser family to SPIE Photonics West 2025 for their grand debut: Chilas POLARIS — A frequency-stabilised laser with selectable ITU channels for precise control and excellent long-term stability and Chilas ATLAS — A versatile wavelength-tunable laser, available at 685 nm, 850 nm, 1550 nm, 1600 nm, and 1700 nm. All ATLAS modules come with a broad tuning range, high resolution, and narrow linewidth. Swing by the NL Pavilion to check out Chilas and all of our other innovative partners! For more information about Photonics West 2025, please visit: https://lnkd.in/duYhTz-4 #Chilas #ChilasComet #PhotonicsWest2025 #PhotonDeltaEcosystem #NLPavilion

Quantum Navigation: A Leap Beyond GPS The Global Positioning System (GPS) has revolutionized navigation, providing accurate positioning through satellite signals. However, its dependence on external signals makes it vulnerable to disruptions like jamming, spoofing, or inaccessibility in environments such as dense urban areas, underwater, or deep space. Quantum navigation, a cutting-edge alternative, offers the promise of unparalleled precision and reliability. Quantum navigation relies on phenomena like superposition, entanglement, and ultra-precise quantum sensors, such as atomic clocks and accelerometers. Unlike GPS, it operates independently of satellite signals, making it highly resilient. Advantages Over GPS: Signal Independence: Quantum navigation doesn’t rely on external signals, making it immune to interference and ideal for GPS-denied areas. Enhanced Precision: Quantum devices provide extraordinary accuracy, vital for applications like autonomous vehicles, submarines, and space missions. Robust Security: With no external signals to intercept, the system is less prone to jamming or spoofing. Versatility: Quantum systems can operate in terrestrial, underwater, and extraterrestrial environments, expanding the scope beyond GPS. Present Constraints: Despite its promise, quantum navigation faces significant challenges today: Size and Portability: Current quantum devices are bulky and unsuitable for widespread deployment. High Cost: The technology remains expensive, limiting accessibility. Sensitivity to Conditions: Quantum systems are highly sensitive to environmental disturbances, requiring stable conditions for optimal performance. Limited Commercial Availability: The technology is still in research and development, with few real-world applications. While GPS remains the dominant navigation technology, quantum navigation is steadily progressing. Overcoming these constraints will mark a transformative shift, enabling precise, signal-independent navigation for critical applications in defense, space, and beyond. #QuantumNavigation #QuantumTech #QuantumComputing #QuantumInnovation #QuantumSensors #QuantumFuture #madhurdubey

Unlock the Quantum Frontier: Experience Unmatched Sensitivity with Our Superconducting Nanowire Single Photon Detectors!