Thales Alenia Space Italia SpA Patent applications |
Patent application number | Title | Published |
20110200074 | METHOD AND SYSTEM FOR SPREAD SPECTRUM SIGNAL ACQUISITION - A method for acquiring a direct sequence spread spectrum signal, which is transmitted on a carrier frequency and is modulated with a code signal of length equal to Nc chips, for determining a code delay of the spread spectrum signal and a Doppler shift with respect to the carrier frequency, the determination being performed on a discrete two-dimensional space of M possible code delays and F possible frequency shifts, includes: receiving and sampling the spread spectrum signal to obtain a sampled spread spectrum signal; performing a despreading operation of the sampled spread spectrum signal with a local replica signal of the code signal, by performing the despreading for a plurality of possible code delays between the sampled signal and the replica signal; and performing a parallel frequency search on the result of the despreading step, by performing a step of computing a Fourier transform on the result. The Fourier transform is a fractional Fourier transform. | 08-18-2011 |
20100284078 | Device for Protecting Optical and/or Electronic Apparatuses, Space Telescope Comprising said Device, and Device for Removably Occluding an Aperture - A protective device for optical and/or electronic apparatuses, in particular space telescopes, is described, wherein the device is such as to removably close an aperture, through which apparatuses may be accessed, the device being such as to achieve a first and second operating configuration, respectively, for allowing or inhibiting access to apparatuses through aperture. The device includes a supporting structure having at least one supporting beam, which is transversely positioned with respect to aperture; a plurality of covering elements comprising at least a pair of elements, which are rotatably coupled to the same supporting beam; and actuation means for rotating the covering elements between a first and second angular position, in order for the device to attain the first or second operating configuration, respectively, wherein, in the second operating configuration, the covering elements are such as to define together a screen for aperture. | 11-11-2010 |
20100245172 | Method of Synchronising Nodes of a Network, and System and Device Therefor - A method of and a system for synchronising a plurality of spaced apart nodes of a network to a reference time of a control centre, the method comprising receiving measurement data from each of the plurality of nodes; ranking the plurality of nodes with respect to one another according to the measurement data; selecting one or more master nodes from the plurality of nodes according to the ranking; assigning each of the plurality of nodes to a corresponding master node; determining a first time offset between the local time measured at each node and the local time measured at its corresponding master node and determining a second time offset between each of the master nodes and the reference time such that the time offset between the local time measured at each node and the reference time can be determined. | 09-30-2010 |
20100034358 | Shielding Device for Optical and/or Electronic Apparatuses, and Space Vehicle Comprising Such Device - A shielding device ( | 02-11-2010 |