Abstract: Various exemplary embodiments relate to a method for detecting an object using radar system having M transmit antennas, N receive antennas, and a processor, including: receiving, by the processor, N×M digital signals, wherein the N receivers receive M received signals corresponding to M sequences of encoded transmitted signals resulting in N×M digital signals; processing the N×M digital signals to produce N×M first range/relative velocity matrices; applying a phase compensation to N×(M?1) first range/relative velocity matrices to compensate for a difference in range between the N×(M?1) first range/relative velocity matrices and the Mth range/velocity matrix; decoding the M phase compensated range/relative velocity matrices for the N receivers using an inverse of the transmit encoding to produce M decoded phase range/relative velocity matrices for the N receivers; detecting objects using the M range/relative velocity matrices for the N receivers to produce a detection vector.

Abstract: Various exemplary embodiments relate to a wireless communications system related method and vehicle including: a first communications device configured for attachment to a vehicle including: a first antenna group, a first receiver configured to receive a first instance of a message via the first antenna group, a first transmitter configured to transmit a second instance of the message via the first antenna group, and a first controller configured to cause transmission of the second instance via the first transmitter in response to the first receiver receiving the first instance; and a second communications device configured for attachment to the vehicle including: a second antenna group, a second receiver configured to receive data via the second antenna group, wherein the second receiver receives both the first instance and the second instance, and message combination circuitry configured to generate combined message by combining the first instance and the second instance.

Abstract: Various exemplary embodiments relate to a wireless communications system related method and vehicle including: a first communications device configured for attachment to a vehicle including: a first antenna group, a first receiver configured to receive a first instance of a message via the first antenna group, a first transmitter configured to transmit a second instance of the message via the first antenna group, and a first controller configured to cause transmission of the second instance via the first transmitter in response to the first receiver receiving the first instance; and a second communications device configured for attachment to the vehicle including: a second antenna group, a second receiver configured to receive data via the second antenna group, wherein the second receiver receives both the first instance and the second instance, and message combination circuitry configured to generate combined message by combining the first instance and the second instance.

Abstract: The invention relates to a device (35) and a method for determining an individual power representation of operation states of a plurality (10) of loads, wherein such information on the individual power representation may furthermore be used for monitoring for malfunctions of a load (15) included in the plurality (10) of loads. In order to provide a cost effective approach to determining an individual power representation of operation states of a plurality (10) of loads, parameterizations of the individual power representations P(j, sj; t) with a finite set of parameters are chosen in order to find the best parameter fit to measurements on energy consumption.

Abstract: A distributed radio system comprising a first receiver (1) and a second receiver (2) each receiver comprising a tuner (11, 21) adapted to receive radio signals and to transmit tuned radio signals, a first baseband unit (12, 22) coupled to the tuner (11,21) and adapted to receive the tuned radio signals and to partially demodulate the tuned radio signals, the first baseband unit (12,22) being further adapted to transmit partially demodulated signals, a second baseband unit (14, 24). The distributed radio system further comprising a digital communication channel (3) adapted to receive the partially demodulated signals and to redistribute the partially demodulated signals to the second baseband unit (14, 24).

Abstract: The invention relates to a power consumption monitoring apparatus (11) for monitoring the power consumed in a network (1) of electrical devices (3, 4, 5; 6, 7, 8). An electrical parameter measuring unit measures an overall electrical parameter of the network over time,a group signature providing unit provides group signatures, wherein each group signature is indicative of an electrical parameter of a certain group (9; 10) of electrical devices over time, and a disaggregation unit disaggregates the measured overall electrical parameter over time for determining the power consumption of the individual groups of electrical devices depending on the provided group signatures. This allows disaggregating the overall electrical parameter, without providing for each group an individual measuring unit, thereby reducing the required hardware and the time needed for installing and maintaining the power consumption monitoring apparatus.

Abstract: A distributed radio system comprising a first receiver (1) and a second receiver (2) each receiver comprising a tuner (11, 21) adapted to receive radio signals and to transmit tuned radio signals, a first baseband unit (12, 22) coupled to the tuner (11,21) and adapted to receive the tuned radio signals and to partially demodulate the tuned radio signals, the first baseband unit (12,22) being further adapted to transmit partially demodulated signals, a second baseband unit (14, 24). The distributed radio system further comprising a digital communication channel (3) adapted to receive the partially demodulated signals and to redistribute the partially demodulated signals to the second baseband unit (14, 24).

Abstract: A distributed radio system comprising a plurality of receivers (1,2,15), each receiver being adapted to receive radio signals and to transmit respective digital signals. The system further comprises a digital communication channel (3) coupled to the plurality of receivers (1,2,15) and adapted to receive the digital signals and to transmit the digital signals. The system comprises a base-band unit (4) coupled to the communication channel (3) and adapted to combine and process the digital signals, the digital signals comprising information available in each receiver (1,2,15) of the plurality of receivers for exploiting a diversity gain.

Abstract: The present invention relates to a method and apparatus for disaggregation of energy consumption in a power distribution system. The basic idea is to look at the overall energy consumption and recognize the contributions of each single electrical device (120), e.g. for the purposes of providing a breakdown of energy consumption to users. Disaggregation is assisted by usage of multi-modal system data coming from various external data sources (106-1 to 106-n), such as building management systems and/or IT infrastructure, to relate activities of people or devices to changes in power consumption.

Abstract: A passive detector (10) includes a receiver (11) configured to collect passive radiation (12) in an environment, where detailed information about a portion of the passive radiation is estimated as a baseline of the passive energy. The passive energy is generated by a passive source unrelated to the detector. A monitor (24) is configured to measure a fluctuation in the baseline. A decision module (34) is coupled to the monitor to determine whether the fluctuation represents a presence or motion in the environment. Detection methods are also disclosed.

Abstract: The invention relates to an electrical energy distribution apparatus (1) for distributing electrical energy within an arrangement of electrical devices (3 to 7, 11). Assignments between priority classes and at least some of the electrical devices (3 to 7) are provided and distribution control information for controlling the distribution of electrical energy within the arrangement of the electrical devices (3 to 7, 11) is received. A distribution rules determination unit (9) determines distribution rules depending on the received distribution control information and the provided assignments, and an electrical energy distributor (10) distributes the electrical energy within the arrangement of electrical devices (3 to 7, 11) depending on the determined distribution rules.

Abstract: The invention relates to a disaggregation apparatus (1) for identifying an electrical consumer in an electrical network (2). An electrical signature providing unit (7) provides electrical signatures of the electrical consumers (4, 5, 6), and an electrical parameter determining unit (8) determines an overall electrical parameter of the electrical network (2). An identification unit (9) identifies an electrical consumer depending on the determined overall electrical parameter and a correlation of the electrical signatures. Since the identification unit identifies an electrical consumer depending on the determined overall electrical parameter and a correlation of the electrical signatures, the identification of an electrical consumer does not depend on the detection of an event only. This makes the identification more robust, especially less prone to errors caused by missed events, thereby improving the reliability of identifying an electrical consumer in the electrical network.

Abstract: The invention relates to an operational state determination apparatus (1) for determining whether a variation in a determined electrical parameter of an electrical network (2) is caused by a variation in an operational state of an electrical consumer of the electrical network. The electrical network comprises multiple electrical consumers (3, 4, 5) and a voltage source (6), wherein a variation classification unit (10) determines whether a variation in the determined electrical parameter of the electrical network is caused by a variation in the operational state of an electrical consumer of the network depending on a decision variable which depends on a variation in a measured voltage and a variation in a measured current of the electrical network. This determination can be performed, without directly using the variation in the determined electrical parameter of the electrical network and is therefore less influenced by random voltage fluctuations in the electrical network.

Abstract: The invention relates to a disaggregation apparatus for identifying an appliance in an electrical network (2) comprising multiple appliances (3, 4, 5). A voltage meter (7) measures a first change in a mains voltage (V) delivered to the appliances of the electrical network, while an operational state of an appliance is modified, and a second change in the mains voltage, while a switchable load is switched. An appliance determination unit (9) determines the appliance, of which the operational state has been changed, based on the measured first change in the mains voltage, the measured second change in the mains voltage and the resistance of the switchable load. Thus, an appliance can be determined without detecting switching flickers in very short time durations, i.e. high sampling rates and continuous monitoring are not necessarily required. This reduces the technical efforts of the disaggregation apparatus for performing the disaggregation function.

Abstract: A method of synchronizing multi-carrier systems is provided, wherein the method comprises inserting a predefined frequency domain signal into a signal on a transmitter side of a multi-carrier system and multi-carrier modulating the signal. Furthermore, the method comprises transmitting the multi-carrier modulated signal via a carrier channel to a receiving side of the multi-carrier system, and synchronizing the multi-carrier modulated signal by using the predefined frequency domain signal portion of the multi-carrier modulated signal.

Abstract: In time varying OFDM systems, the effect of a non-ideal time synchronization may lead to a poor performance in terms of decoded average bit error rate versus the signal-to-noise ratio. The receiver apparatus (3) of the transmission system (1) estimates a subcarrier-dependent channel frequency response and determines an intercarrier interference spreading on the basis of a cyclic shift in symbols carried by the subcarriers. Therewith, an intercarrier interference included in an OFDM signal can be canceled, even in case of a non-ideal time synchronization.

Abstract: In time varying OFDM systems, the effect of a non-ideal time synchronization may lead to a poor performance in terms of decoded average bit error rate versus the signal-to-noise ratio. The receiver apparatus (3) of the transmission system (1) estimates a subcarrier-dependent channel frequency response and determines an intercarrier interference spreading on the basis of a cyclic shift in symbols carried by the subcarriers. Therewith, an intercarrier interference included in an OFDM signal can be canceled, even in case of a non-ideal time synchronization.

Abstract: In a receiver for processing OFDM encoded signals, wherein the OFDM encoded digital signals are transmitted by means of a symbol in each of subcarrier frequency channels, with at least some of said subcarriers containing user data symbols, an initial estimate of a channel frequency response is formed from magnitudes of user data symbols received in those subcarriers. Then, a correlation function of a channel impulse response is estimated by performing an inverse Fourier transform on the initial estimate of the channel frequency response, and the length of the channel impulse response is estimated by examining peaks in the estimated correlation function of the channel impulse response.

Abstract: DVB-T2 is the next generation standard for the terrestrial digital broadcast. There is the request of identifying the transmitters in the Single Frequency Networks mainly for testing purposes. This might be achieved by embedding a watermark sequence in the transmitters to identify them uniquely. However, the transmitters can also be deployed in SFN so they have to transmit exactly the same data. Therefore, the watermark has to be added at the radio signal. It connot be added at content level as it happens in other standard as, for instance, in cellular systems. The invention proposes two possible new methods to watermark the transmitter ID in the DVB-T2 signal. In both cases we assign orthogonal pilot sequences to different transmitters. In one case the sequences are added at very low power to ensure no loss in the data rate. This is a very attractive alternative, but it might require a much more expensive receiver.

Abstract: A passive detector (10) includes a receiver (11) configured to collect passive radiation (12) in an environment, where detailed information about a portion of the passive radiation is estimated as a baseline of the passive energy. The passive energy is generated by a passive source unrelated to the detector. A monitor (24) is configured to measure a fluctuation in the baseline. A decision module (34) is coupled to the monitor to determine whether the fluctuation represents a presence or motion in the environment. Detection methods are also disclosed.