摘要:
Methods and systems are described for conserving energy used by an energy consuming device. In certain embodiments, an energy conservation system can be configured to deliver energy to the energy consuming device for a period, followed by a period where energy delivery is dampened and/or cut. By cycling the delivery of energy in this fashion, the energy conservation can achieve a pulsed efficiency.
摘要:
L'invention concerne une charge utile pour satellite (600) d'augmentation comprenant une voie d'entrée (201,202,503) adaptée à la réception de signaux de navigation émis par au moins une station (NLES) terrestre de navigation dans une première bande de fréquences et une pluralité de voies de sortie (206,207,208,216,217,218) chacune adaptée à la diffusion de signaux de navigation dans une bande de fréquences différente de ladite première bande et des autres bandes de diffusion, caractérisée en ce qu'elle comprend en outre un processeur de navigation (501). L'invention concerne également un satellite comprenant une telle charge utile et un système d'augmentation comprenant un tel satellite.
摘要:
The present invention relates to a method and an apparatus for determining an integrity indicating parameter (e.g. an integrity risk IR or a protection level PL) indicating the integrity of positioning information determined from positioning information signals disseminated from a plurality of space vehicles SAT1, SAT2, SAT3 of a global positioning system. An input parameter (e.g. an alert limit AL or an integrity risk IR) is provided, a plurality of integrity information parameters (σ SISA, (σ SISMA or equivalent, σ X , k X ) are received, and the integrity indicating parameter (IR; PL) is determined on the basis of the input parameter (AL; IR) and on the basis of a first relation between the integrity indicating parameter (IR; PL) and the input parameter (AL; IR) and the plurality of integrity information parameters (σ SISA , σ SISMA or equivalent, σ X , kx).
摘要:
An atomic clock is provided. An output of a tunable LO is coupled to a user output of the atomic clock. A charge pump adjusts the tunable LO with a LO tuning voltage. A follower circuit sets an output frequency of the atomic clock to a frequency of an external reference signal coupled to an external reference input. An atom referenced circuit sets the output frequency of the atomic clock to a frequency based on stored operating settings. A controller stores then current operating settings generated based on a then current external reference signal coupled to the external reference input. The controller is further configured to apply the stored then current operating settings to the atom referenced circuit when the then current external reference signal is removed from the external reference input to maintain the output frequency of the atomic clock at the output frequency set by the follower circuit.