Tag: CubeSats

  • BKZS: Türkiye’s regional GNSS system takes shape

    BKZS: Türkiye’s regional GNSS system takes shape

    Türkiye is laying the groundwork for its own satellite navigation system, the Bölgesel Konumlama ve Zamanlama Sistemi (BKZS), or Regional Positioning and Timing System. As a key pillar of Türkiye’s 2030 Industry and Technology Strategy, BKZS reflects the country’s ambition to gain strategic autonomy in satellite-based positioning, navigation and timing (PNT), moving away from dependence on foreign systems such as GPS.

    Strategic imperatives and security concerns

    BKZS was established as one of the ten flagship goals of Türkiye’s National Space Program, introduced in 2021. It directly addresses growing national security concerns: in times of geopolitical conflict, GNSS signals can be jammed or disabled — leaving nations vulnerable if reliant on foreign services. President Erdoğan’s 2030 roadmap emphasizes preparing for “a new era of challenges,” where technological independence is seen as vital to national sovereignty.

    Building the foundation: Atomic clocks and CubeSats

    At the core of BKZS development is innovative timing technology. The TUBITAK National Metrology Institute has designed Türkiye’s first domestically produced rubidium-based atomic clock for use in positioning satellites. Developed in collaboration with the Turkish Space Agency, the prototype is undergoing qualification testing. Considering that atomic clocks are among the most expensive and sensitive components of a GNSS system, their in-house development not only reduces reliance on foreign suppliers but also delivers significant cost savings and strengthens national expertise. The strategic plan involves an initial technology demonstration phase using a 6U CubeSat, a miniaturized satellite based on the CubeSat standard. This satellite — currently in production — will test the atomic clock in orbit and gather critical performance data, helping to validate system components and gain operational experience ahead of full deployment.

    Regional scope with global ambitions

    BKZS is being designed as a regional system focused on Türkiye and its surrounding geography. Preliminary architecture envisions an eight-satellite constellation with an estimated cost of $2.8 billion. While this figure underscores the program’s scale, it also reflects the strategic priority attached to securing sovereign PNT capabilities. Military users stand to gain the most immediate benefits, with access to secure, independent timing and positioning data. However, the system is also intended for broad civilian use, including smart transportation systems, precision agriculture, emergency response and disaster management.

    Integrated into a broader space strategy

    BKZS is not being developed in isolation. It is part of Türkiye’s wider National Space Program, which includes lunar exploration and autonomous launch capabilities. The Turkish Space Agency oversees coordination, while the Presidency of Defense Industries provides funding and logistical support. This ecosystem approach is designed to foster technological self-reliance across the entire space value chain. Notably, the private sector is also playing a role. Baykar’s space subsidiary, Fergani, is developing a complementary Turkish GNSS constellation with an ambitious plan to launch 100 satellites. Two of these satellites have already been built, with the first scheduled for launch in 2024, demonstrating multiple pathways toward achieving full domestic capability.

    Economic impact and industrial development

    BKZS also supports Türkiye’s economic goals. The 2030 Strategy includes a target to triple high-tech exports to $30 billion. Space technology is expected to contribute significantly to this goal by generating new opportunities for Turkish firms in satellite design, navigation electronics and advanced manufacturing.

    By fostering domestic expertise, BKZS strengthens the foundation for a sustainable, self-sufficient aerospace sector, one capable of supporting both defense and commercial applications.

    Aligning with a global trend

    Türkiye’s efforts echo a growing global trend: building regional or national GNSS systems to reduce reliance on global services. Reflecting this shift, India’s NavIC is a fully operational regional GNSS; Japan’s QZSS, also operational, functions primarily as a GPS augmentation system over the Asia-Pacific; South Korea’s KPS is currently under development to provide independent PNT services across the Korean Peninsula. China’s BeiDou system also began as a regional constellation focused on the Asia-Pacific before expanding to become a global navigation system. Türkiye’s geographic position — at the crossroads of Europe, Asia and the Middle East — positions it uniquely as a potential regional hub for satellite navigation services. While the project is rooted in national objectives, it also opens the door to international cooperation. Italy has emerged as a prospective partner, particularly in advancing space-qualified technologies, offering mutual benefits for both countries.

    Looking ahead

    Beyond 2030, TTürkiye envisions BKZS as a stepping stone toward a broader space infrastructure. This initiative signifies a strategic commitment to establishing a sustained and autonomous presence in space.

    Of course, the success of BKZS will depend on more than ambition. Sustained political commitment, reliable funding, and continued advances in core technologies like atomic clocks and satellite systems will be essential. If these conditions are met, BKZS has the potential not only to enhance Türkiye’s strategic autonomy but also to establish the country as a key contributor to regional — and potentially global — GNSS capability.

  • Tactical-grade MEMS accelerometers launched for space

    Tactical-grade MEMS accelerometers launched for space

    Photo: Silicon Designs
    Photo: Silicon Designs

    New radiation-tested, tactical-grade MEMS inertial accelerometers designed for spacecraft electronics testing

    Silicon Designs Inc. has launched the Model 1527 series, a family of miniature, radiation-tested, tactical-grade micro-electromechanical (MEMS) inertial accelerometers.

    Offered in three full-scale acceleration ranges — ±10 g, ±25 g and ±50 g — the series is designed to support a variety of critical space electronics testing requirements, including those of spacecraft, satellites and CubeSats.

    In addition, their small bias and scale-factor temperature coefficients, excellent in-run bias stability, and zero cross-coupling make the Model 1527 series particularly well-suited for spacecraft electronics testing applications requiring low power consumption (+5 VDC, 6.5 mA), low noise, long-term measurement stability in –55° C to +125° C environments, and performance reliability under intermittent radiation exposures.

    Radiation test report data, as generated during internal qualification testing, is available on request.

    The rugged design of the Model 1527 series combines a tactical-grade MEMS inertial sense element with a custom integrated circuit, internal temperature sensor, onboard sense amplifier and ±4V differential analog output stage. The MEMS inertial sense element and internal components are housed within a lightweight, hermetically sealed, nitrogen-damped, miniature, RoHS compliant, J-lead LCC-20 surface mount ceramic package (U.S. Export Classification ECCN 7A994), weighing 0.68 grams.

    Its compact and lightweight footprint allows for ease of accelerometer installation within space-constrained environments, as well as minimization of mass loading effects. Each Model 1527 Series accelerometer is marked with a serial number for traceability on both top and bottom surfaces.

    All Silicon Designs’ Model 1527 Series tactical-grade MEMS inertial accelerometers are designed, manufactured, performance-verified and calibrated in-house at the company’s global corporate headquarters and R&D center outside of Seattle, Washington. Product performance documentation is supplied at the time of shipment, including residuals, thermal sensor model, acceleration model, bias, scale factor, linearity, operating current and frequency response data.