38 results about "Emitter identification" patented technology

An apparatus for determining a coincidence of a position with a reference position, wherein radio signals from fixedly positioned radio transmitters can be received at the position, having a provider for providing properties of the radio signals of the fixedly positioned radio transmitters at the position, wherein the provided properties of the radio signals include transmitter identifications identifying the radio transmitters, a separator for separating the radio transmitters into a first number of radio transmitters previously recorded transmitter identifications of which at the reference position are identical with transmitter identifications provided at the position, and into a second number of radio transmitters previously recorded transmitter identifications of which at the reference position and transmitter identifications provided at the position are different, and a determiner for determining a measure of matching for the position on the basis of the provided properties of the radio signals, wherein both properties of the first number of radio transmitters and properties of the second number of radio transmitters are taken into account in the determination of a measure of matching, and wherein the properties of the first number of radio transmitters and the properties of the second number of radio transmitters enter the measure of matching differently.

A method and system for identifying a distributed model for a nonlinear system represented by a block diagram. The distributed model identification can be achieved by first replacing all signal links across the block diagram with elastic links by augmenting each input port of a plurality of blocks with a signal generator that produces a replacement signal value (sig) for the value received by each of the plurality of blocks. Thereafter, the difference between the received value and the replacement signal values can be calculated and outputted as an auxiliary signal to control elasticity of the elastic links. Then, instead of global identification of the block diagram parameters, i.e. treating the diagram as a whole, the block parameters are identified locally based on the local data. Simultaneously, the auxiliary output signals are forced to vanish. Consequently, the solution found is also a solution to the global identification method.