نتایج جستجو برای: satellite tracking
تعداد نتایج: 192298 فیلتر نتایج به سال:
European eels (Anguilla anguilla) undertake a approximately 5000-kilometer (km) spawning migration from Europe to the Sargasso Sea. The larvae are transported back to European waters by the Gulf Stream and North Atlantic Drift. However, details of the spawning migration remain unknown because tracking eels in the Atlantic Ocean has, so far, eluded study. Recent advances in satellite tracking en...
Any future space debris removal or on-orbit servicing mission faces the problem of the initial relative orbit determination of the servicing satellite to the noncooperative target. In this work we analyze the relative navigation accuracy that can be achieved in low Earth orbit, by using ground-based orbit determination from radar tracking measurements for the target, and classical GPS-based orb...
The image-based detection and tracking of moving objects are extremely important for many aerospace and aviation applications, including satellite-based imagery. In this paper, we briefly review various approaches related to image-centroid and/or target tracking. We emphasize square root algorithms that are supposed to be more efficient than the basic implementation of KF. Then, we present some...
A setup of satellite ranging based on phsical random sequence is demonstrated, which has absolute security in information transmission because of the random property of the physical sequence. Using true random sequence replacing pesudo random sequence, synchronization technology is vital important for transmitted information demodulation, despreading and decryption. Based on the pricinple of te...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید