Abstract: A method for acoustic detection of shooter location includes the following steps: receiving acoustic signals by a microphone array; detecting muzzle blast (MB) and shock wave (SW) signals through matched filter and cross correlation processes; transforming the detected MB and SW signals from time domain into frequency domain; beamforming the signals by means of the Delay and Sum method in frequency domain; estimating the direction of arrival (DOA) for the MB and SW signals by finding the azimuth and elevation which give the maximum power of the beamforming response; performing range estimation using the difference between the arrival time of the MB and SW signals together with the DOA estimations.

Abstract: A foldable antenna system particularly suitable for use in a radar system includes a first antenna and a second antenna providing signaling; a body part; at least an actuator connected to the body part; a first connection element; a second connection element configured to connect the second antenna to the first antenna; a third connection element movably connected to the first antenna and a carriage part fixing the actuator to a surface. One end of the first connection element is movably connected to the body part distal from the actuator and a second end is connected to the first antenna.

Abstract: A heater circuit track pattern designed to be coated on a heater plate in order to achieve high uniform heat distribution and fast heating up, low power consumption and prevent current crowding with high fill factor. The heater plate includes a substrate layer which is an electrically insulative, highly thermally conductive, low heat capacity substrate where the heater circuit track pattern has a conductive layer and a resistive layer. The conductive layer has conductive parts such that power pads, main power lines, electrical transfer pads, sub-conductor lines are formed by a highly conductive material to distribute power equally to the resistive layer. The resistive layer has resistive portions including resistive parts formed by a resistive ink to heat up the heater plate.

Abstract: An RF crossover apparatus provides low transmission and return losses for microwave systems and meets the requirement for the RF signals to leap over each other as in an insulated state. The RF crossover apparatus contains a body produced from ceramic material, at least two RF strips placed inside the body in a way to intersect each other and at least one insulation layer insulating the RF strips placed on the body at least from the external environment. The body produced from ceramic material enables operation on high frequencies and this provides low transmission and return losses. The RF crossover apparatus also contains matching circuits on the tips of the RF strips for the RF strips to be passed to chip devices during use.

Abstract: A cleaning system and a cleaning method to clean the paste overflowing from at least one hole on the substrate on to at least one substrate during the production of ceramics sintered together at low temperature. The cleaning system includes at least one adhesive tape that adheres to the paste and is convenient for placing over the substrate and at least one pressing element which presses the adhesive tape towards the substrate in order for the adhesive tape to adhere to the overflowing paste. The cleaning method includes laying at least one adhesive tape over the substrate; pressing the adhesive tape towards the substrate by at least one pressing element and enabling the adhesion of the adhesive tape to the paste overflowing from the hole; and separation of the adhesive tape that adheres on the paste overflowing from the hole.

Abstract: A cooling system for cooling circuit boards. The cooling system includes a casing, which includes at least two board slots and at least one cooling plate between the two board slots; at least one cover, which is placed on a circuit board to be secured to one of the board slots; and at least one wedge placed on the cover. The wedge provides thermal conductivity between the circuit board and the cooling plate when the circuit board is placed into the board slot; and at least one wedgelock that secures the circuit board to the board slot.

Abstract: An electronic device carrying system used in military field in particular and providing carrying jammers and similar electronic devices (8) on back of user includes a waist belt (4) covering waist in a manner it sits onto hip bone of user and providing carrying of load through lower extremities, shoulder upper perlons (10) providing fixing shoulder hangers (2) above shoulder, preventing hanging of load and lying on to right-left side and connected from end in lower section to shoulder hangers (2) and mounted to electronic device (8) from end in upper section, chest band (12) providing shoulder hangers (2) to change pressure points on shoulders, carrying apparatus height adjustment mechanism (1) mounted onto electronic device (8), profile (5) having carrying apparatus height adjustment mechanism (1) and providing carrying electronic device (8) to desired height by means of fixing to holes in sequence provided thereon by pins.

Abstract: A reduced size phase shifter provides the orientation of the microwave beams. The phase shifter includes RF connector (4) that provides the entrance of the coaxial transmission line (8) into the phase shifter (1), dielectric plate (7) with high dielectric constant that provides the gradual transformation of the quasi TEM mode carried by means of the micro-strip transmission line (6) into TE10 mode carried on the twin-toroid structure (5).

Abstract: A phase shifter capable of withstanding very high average RF power, which enables directing of the beam in radar systems, it includes a waveguide, a ferrite toroid, composite dielectric plate including a dielectric plate in high thermal conductivity and a dielectric plate with the high dielectric constant, which increases the amount of phase shift per the unit length by directing the electric field and the transfer of heat generated on the ferrite toroids to the waveguide, a twin-toroid ferrite-dielectric structure including a combination of ferrite toroids and composite dielectric plates.

Abstract: A heater circuit track pattern designed to be coated on a heater plate in order to achieve high uniform heat distribution and fast heating up, low power consumption and prevent current crowding with high fill factor. The heater plate includes a substrate layer which is an electrically insulative, highly thermally conductive, low heat capacity substrate where the heater circuit track pattern has a conductive layer and a resistive layer. The conductive layer has conductive parts such that power pads, main power lines, electrical transfer pads, sub-conductor lines are formed by a highly conductive material to distribute power equally to the resistive layer. The resistive layer has resistive portions including resistive parts formed by a resistive ink to heat up the heater plate.

Abstract: The present invention relates to a method for incremental learning of a classification model, where pre-defined weak incremental learners are distributed over the distinct regions in a set of partitionings of the input domain. The partitionings and regions are organized via a binary tree and they are allowed to vary in a data-driven way, i.e., in a way to minimize the classification error rate. Moreover, to test a given data point, a mixture of decisions is obtained through the models learned in the regions that this point falls in. Hence, naturally, in the cold start phase of the data stream, the simpler models belonging to the larger regions are favored and as more data get available, the invention automatically puts more weights on the more complex models.

Abstract: In the present invention, an analog input signal (X(n)) is processed by a Peak to Average Ratio Reduction (PARR) block to diminish the difference between peak amplitudes and average amplitudes of the analog input signal (X(n)). After, a distorted signal (h(n)) having low peak to average amplitude ratio, generated at the PARR block output, is processed by a delta sigma modulation (DSM) block converts the distorted signal (h(n)) into a digitally modulated distorted signal (h_dsm(n)) with high signal to noise ratio (SNR). Afterwards, the digitally modulated distorted signal (h_dsm(n)) is corrected and amplified by a Class-D RF power amplifier fed by a feeding signal (env(n)) generated from a digital correction signal (z_dsm(n)). As a result, a digitally modulated signal (y(n)) with high signal to noise ratio (SNR) of the analog input signal (X(n)) is generated at the output of the Class-D RF power amplifier.

Abstract: The present invention relates to an antenna array platform comprising at least one bottom plate, at least one magnet preferably located on the bottom side of the bottom plate, which provides the bottom plate to be attached to suitable platforms made of a material that can be attracted by magnetic field force without the need for any mechanical adaptations, at least one box located on the bottom plate, at least one lid covering the upper part of the box, a number of antenna slots equal to the number of antennas to be used, made in the lid, at least one plate that provides support so that the box stays at a required position, at least one screw positioned on at least one side of the plate and entering the angling hole that corresponds to the required angle, providing the plate stays fixed.

Abstract: Recurrent neural networks are powerful tools for handling incomplete data problems in machine learning thanks to their significant generative capabilities. However, the computational demand for algorithms to work in real time applications requires specialized hardware and software solutions. We disclose a method for adding recurrent processing capabilities into a feedforward network without sacrificing much from computational efficiency. We assume a mixture model and generate samples of the last hidden layer according to the class decisions of the output layer, modify the hidden layer activity using the samples, and propagate to lower layers. For an incomplete data problem, the iterative procedure emulates feedforward-feedback loop, filling-in the missing hidden layer activity with meaningful representations.

Abstract: A real-time, semi-automatic method for discriminant track initialization in thermal imagery is very critical for tracking since it determines what to track for the tracker. Therefore, any insignificant or false information may result in redundant features or deceptive appearance that can cause premature track losses. To achieve long-term tracking, a real-time, semi-automatic track initialization methodology for IR images is proposed which takes a single image coordinate as input, then generates target bounding box for the most salient segment. The present invention is designed for real-time applications in which erroneous user input is unavoidable. Therefore, error compensation capability of present invention both introduces many practical advantageous together with performance boost. Low computational cost and requirement of only a point coordinate as input in the vicinity of the target make this approach preferable in real-time tracking applications.

Abstract: In the present invention, an all digital, multi channel RF transmitter is utilized for a parallel magnetic resonance imaging (MRI) device, MRI signal generation, modulation and amplification are employed entirely digitally in the proposed RF transmitter, which enables each transmit channel to be easily and individually reconfigured in both amplitude and phase. Individual channel control ensures a homogeneous magnetic field in the multi channel RF coil in MRI. Besides the homogeneous magnetic field generation, multi-frequency MRI signal generation is made easy by the present invention with very high frequency resolution. Multi-frequency enables faster image acquisition which reduces MRI operation time. Digital Weaver Single Side Band (SSB) modulation is also incorporated into the all digital transmitter to suppress unwanted bands of Double Side Band (DSB) MRI signals. The power amplifier in the MRI transmitter does not amplify the unwanted band so that SSB modulation leads to higher power efficiency.

Abstract: A system and a method for estimating a size of an object in an image are provided. The method is implemented on images captured and processed by an image processor for increasing the efficiency and quality of the estimation of an object size in the image. The method includes at least following steps: providing a pixel image including at least one object and selecting a pixel on the object; calculating pixel standard deviations for pixels lying within an increasing window, to generate a graph of window size versus standard deviation; checking whether a curve of the graph of window size versus standard deviation represents a monotonically decreasing trend or not.

Abstract: In the present invention, an all digital, multi channel RF transmitter is utilized for a parallel magnetic resonance imaging (MRI) device, MRI signal generation, modulation and amplification are employed entirely digitally in the proposed RF transmitter, which enables each transmit channel to be easily and individually reconfigured in both amplitude and phase. Individual channel control ensures a homogeneous magnetic field in the multi channel RF coil in MRI Besides the homogeneous magnetic field generation, multi-frequency MRI signal generation is made easy by the present invention with very high frequency resolution. Multi-frequency enables faster image acquisition which reduces MRI operation time. Digital Weaver Single Side Band (SSB) modulation is also incorporated into the all digital transmitter to suppress unwanted bands of Double Side Band (DSB) MRI signals. The power amplifier in the MRI transmitter does not amplify the unwanted band so that SSB modulation leads to higher power efficiency.

Abstract: The present invention relates to an antenna array platform comprising at least one bottom plate, at least one magnet preferably located on the bottom side of the bottom plate, which provides the bottom plate to be attached to suitable platforms made of a material that can be attracted by magnetic field force without the need for any mechanical adaptations, at least one box located on the bottom plate,at least one lid covering the upper part of the box, a number of antenna slots equal to the number of antennas to be used, made in the lid, at least one plate that provides support so that the box stays at a required position, at least one screw positioned on at least one side of the plate and entering the angling hole that corresponds to the required angle, providing the plate stays fixed.