Abstract: The invention relates to a method for computing a bound B up to a given confidence level 1??, of an error in a state vector estimation KSV of a state vector TSV of a physical system as provided by a Kalman filter. The method decomposes the errors of the Kalman solution as a sum of the errors due to each of the measurement types used in the filter, In addition, the contribution of each type of measurement is bounded by a multivariate t-distribution that considers the error terms from all the epochs processed. Then, the method implements three main operations: computing a probability distribution of the measurement errors for each epoch and measurement type; summing the previous distributions to obtain a global distribution that models the Kalman solution error; and computing the error bound B for a given confidence level from the resulting distribution.

Abstract: The invention relates to a simulation and planning system for intraoperative radiation therapy and to a method allowing said system to be used for treatment studies, simulation, planning, training and recording, which system generally comprises a central processing unit or computer (1) for management and control and software-based communication with the rest of the devices and the user; one or several monitors or screens (2) for displaying images and peripherals responsible for gathering data relating to the actions performed by said user, a deformation simulation module for the virtual simulation of the deformation produced in the organs and tissues during the process; algorithms for instantly calculating the radiation dose applied during the radiation therapy treatment simulation and means for recording all the activities carried out and generating a full dosimetry report.

Abstract: The present invention relates to a method for computing autonomous horizontal and vertical Protection Levels for least squares-based GNSS positioning, based on navigation residuals and an isotropic confidence ratio.

Abstract: Disclosed is a method for providing a Global Navigation Satellite System (GNSS) navigation position solution with guaranteed integrity in non-controlled environments, the method including processing a (GNSS) signal including multiple satellites generating at least one signal to obtain carrier phase and pseudorange measurements; pre-processing the measurements to detect and characterize local errors in the measurements, wherein the local errors cannot be ascertained a priori, the characterization including providing error bounds estimated by measuring the carrier phase and pseudoranges measurements, thereby providing a set of measurements rejections when the characterization is not possible; and using the estimated error bounds, together with error bounds provided by the GNSS signal concerning satellite and ionospheric errors, to build in each measurement an estimated noise level in the measurements as input to a weighted Receiver Autonomous Integrity Monitoring (RAIM) algorithm in order to compute position co

Abstract: The present invention belongs to the field of positioning applications, particularly those requiring or benefiting from the use of geographic information and needing a high service or integrity guarantee, such as positioning by means of a satellite navigation system for users and ground vehicles circulating through a network of streets and highways for example. The invention can be used both for critical safety applications and for those entailing legal or contractual responsibilities.

Abstract: The invention relates to a simulation and planning system for intraoperative radiation therapy and to a method allowing said system to be used for treatment studies, simulation, planning, training and recording, which system generally comprises a central processing unit or computer (1) for management and control and software-based communication with the rest of the devices and the user; one or several monitors or screens (2) for displaying images and peripherals responsible for gathering data relating to the actions performed by said user, a deformation simulation module for the virtual simulation of the deformation produced in the organs and tissues during the process; algorithms for instantly calculating the radiation dose applied during the radiation therapy treatment simulation and means for recording all the activities carried out and generating a full dosimetry report.

Abstract: Disclosed is a method for providing a Global Navigation Satellite System (GNSS) navigation position solution with guaranteed integrity in non-controlled environments, the method including processing a (GNSS) signal including multiple satellites generating at least one signal to obtain carrier phase and pseudorange measurements; pre-processing the measurements to detect and characterize local errors in the measurements, wherein the local errors cannot be ascertained a priori, the characterization including providing error bounds estimated by measuring the carrier phase and pseudoranges measurements, thereby providing a set of measurements rejections when the characterization is not possible; and using the estimated error bounds, together with error bounds provided by the GNSS signal concerning satellite and ionospheric errors, to build in each measurement an estimated noise level in the measurements as input to a weighted Receiver Autonomous Integrity Monitoring (RAIM) algorithm in order to compute position co

Abstract: A system to provide to different users with information about position coordinates of remote mobile vehicles or individuals (mobile agent) guarantying that each particular position data, as it is provided to the user, is within certain error boundaries. The system is composed by a number of mobile units (MU) installed at the mobile agents and a Central Platform (CP). The MU consists of a GPS/SBAS and/or a Galileo navigation receiver that includes specific autonomous integrity algorithms and a transceiver to transmit GPS/SBAS and/or Galileo derived data to the CP. The CP receives data from MU and enhances position estimation and position integrity. Integrity is guaranteed by the use of a GNSS Integrity service (either provided by SBAS or Galileo) and specific autonomous integrity algorithms that ensure the position integrity in non-controlled environments. The CP provides access to MUs position data to multiple Users via Internet or dedicated telecommunications links.

Abstract: A system for determining a region searched (3003, 5001, 5002, 7002, 7003, 8001, 8002, 8003) by a moving scent detector (201) in the presence of wind, said moving scent detector having pre-calibrated scent capabilities, the system comprises: positioning means (101) attached to the moving scent detector for determining a trajectory (3001) followed by the moving scent detector; scent pattern obtainment means for obtaining an oriented scent pattern (2003, 3002, 4001); and, combination means arranged for combining said trajectory and said oriented scent pattern to obtain the region searched by said moving scent detector. The invention also relates to a method for determining a region searched by a moving scent detector in the presence of wind.