Giovanni Picardi is the author of Elaborazione del segnale radar ( avg rating, 0 ratings, 0 reviews, published ). Abstract (en). A method of filtering SAR images obtained with a Synthetic Aperture Radar (SAR) from the speckle noise is described, said. : Elaborazione del segnale radar: Metodologie ed applicazioni ( Collana scientifica) (Italian Edition) () by Giovanni Picardi and a .

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The accuracy of our solution is limited by the altimetric measurement errors and by the a priori covariance matrix values applied to the initial conditions of the natural bodies integrated.

Elaborazione del segnale radar

Are you sure you want to remove Elaborazionw del segnale radar from your list? New data sets coming from the last part of the nominal mission and from its extended part will be included in the research and processed by SOSYA?

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The picarrdi part elaborzione dedicated to the altimetric data used and to the flybys during which they were collected by the Cassini RADAR. Number of pages Elaborazione del segnale radar metodologie ed applicazioni by Giovanni Picardi Published by F. Then by the use of Matlab, the states have been plotted in order to visualize the entire encounters in two different ways: Check nearby libraries with:.

Our research can be further extended to other mission scenarios in order pciardi reach a better accuracy in the orbit determination of natural satellites by the means of altimetric data collected on board spacecrafts by radar or laser instruments.


It is the problem of determining the best estimate of the orbital parameters of a spacecraft or elaborasione celestial body, whose initial state is unknown, from observations influenced by random and systematic errors, using a mathematical model that is not exact.

In order to give a description of the flybys used in the Orbit Determination process, we implemented a simple SPICE-based routine that reads the ephemeris files and gives three output files containing respectively: Statistical orbit determination is the set of techniques that allows the estimation of the orbital parameters of a spacecraft or a celestial body during its motion in the Solar System. Go to the content.

Buy this book Amazon. These results come from astrometry, radiometric tracking and spacecraft imaging data and estimating all the major Saturnian satellites. Since the altimetric observation errors were not available, we have used a constant value for the weight of 80 m for all the observations corresponding to the maximum resolution value that the instrument achieves approximatively.

Edition Notes Includes bibliographical references and index. Global Search Type of searches: July 31, History. History Created April 1, 4 revisions Download catalog record: You might also like. Bibliografia I riferimenti della bibliografia possono essere cercati con Elaborazine la citazione di AIREcopiando il titolo dell’articolo o del libro e la rivista se presente nei campi appositi di “Cerca la Citazione di AIRE”.

Determination of the orbit of Titan from Cassini. Altimeter data – [email protected]

Astronautic and Satellite Science. In addition, the resulting accuracy of the estimation is due to the short orbital arcs considered in the orbit determination process over which the measurements are taken.

If you want to know more or withhold consent consult the privacy policy. In fact, radar altimetry involves bouncing microwave pulses off the surface of the target body and measuring the time it takes the echo to return to the spacecraft. Elaborazione del segnale radar Close. RADAR is a multimode instrument that uses the five beam antenna feed assembly associated with the spacecraft high gain antenna to transmit and receive electromagnetic radiation according to different operative modes: The standard deviation of the velocity ranges from a minimum of 6.


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This research can be divided in four parts. The total number of altimetric measurements processed is and they are not uniformly distributed in the 14 flybys: In fact we proved that the standard deviation errors effectively decrease by the use of different a priori variance matrices. These techniques acquire information detecting and measuring changes that the object causes on the surrounding field potential, electromagnetic or acoustic field.

Although our estimation has been made only for Titan and yields particular and local solutions, the results are fully satisfying. Angeli in Milano, Italy. Copy and paste this code into your Wikipedia page. You can now embed Open Library books on your website! Share this book Facebook. Moreover, the Picxrdi Simulation part of SOSYA has been enriched the introduction of the module that creates synthetic altimetric measurements at given observation times set.

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