Abstract: The Coaxial Angular Velocity Sensor System is an electronic sensor, which processes and supplies the output signal of the inertial angular velocity with high accuracy and great reliability. The device consists of the main components: angular velocity sensor, analog-digital converter, microcontroller, temperature sensor, power source, mechanical anti-noise-proof chassis. The device's microprocessor comes with a signal processing algorithm that helps increase the accuracy of the device's output. Because of its compact size, high precision, and low cost, the device is used in high precision devices such as UAV cameras, or in life applications such as self-balancing vehicles.

Abstract: This invention proposes the aerodynamic designing method for the central section of small size gas turbine engine type and it includes the following 8 steps: 1st step: checking to confirm if compressor outlet air meets demand specified by the central section; 2nd step: estimating the inner casing diameter based on practical experience; 3rd step: estimating the outer casing diameter; 4th step: estimating the combustor dome height and combustor length; 4th step: estimating the combustor dome height and combustor length; 5th step: estimating the combustor inner and outer liner diameters; 6th step: estimating the exit inner and exit outer diameters of the pre-diffuser; 7th step: estimating the dump gap; 8th step: verifying rotordynamic properties to determine if the shaft diameter assumption starting in the 2nd step is good enough.

Abstract: Far-field antenna pattern measuring system and solution using real-time synchronization of height information helps better the detecting and tracking quality of the 3D radar, paving the way to determine the pattern's practical shape and the impacts of the ground on it to find the accurate height tracking methods. The proposed system is comprised of 5 steps: step 1: get and save height information; step 2: get and save power information; step 3: plot the obtained pattern shape; step 4: determine the obtained pattern parameters; step 5: save lobes parameters into a table and assess in the association with the simulation results.

Abstract: The passively q-switched diode end-pumped solid-state laser is used the gain medium made of Er:Yb doped crystal and the Q-switch made of Co2+:MgAl2O4 crystal. The optical elements are optimally designed for the resonator to achieve pulse energy in a range 0.5 mJ<E<2mJ with the pulse width in a range of 4 ns-15 ns. The resonator is appropriate to use in laser rangefinders, target designator, and other products in military and civilian applications.

Abstract: In order to avoid various jamming attacks from intelligent jammers in modern complex wireless environments, a system and method is presented for a user radio to generate and implement an adaptive anti-jamming communication strategy. The said adaptive anti-jamming communication strategy is obtained via the training process for a specific neural network using Deep Double-Q Reinforcement learning algorithm in the strategy generation phase. The objective of this process is to discover a strategy to select the optimal radio action including transmission channel and transmission power for the user radio, which is changed adaptively to different jamming patterns to maximize the successful transmission rate (“jamming-free”) while retaining the power consumption of user radio as low as possible.

Abstract: The present invention proposes a method of industrial composite manufacturing. The method combines the resin transferring molding method with vacuum process and compression process in appropriate orders for achieving high quality products. In the curing process, microwaves are used to harden the plastic resin in the mold. Specifically, the main steps of the method are following: step 1: preparation of materials and equipment; Step 2: Disposition of the reinforced fibers/fabrics and mold closing at the extend position; Step 3: Vacuum and transfer plastic resin into the mold; Step 4: Mold closing by compression pressure; Step 5: Plastic resin curing by using a microwave system; Step 6: Open the mold and take the composite product.

Abstract: The method of synchronizing data frames between 5G baseband processing stations by GPS-integrated local oscillator block control, including the following steps: step 1: synchronize the baseband processor's local oscillator block with the GPS's 1 pps pulse and generate a 10 ms pulse from the local oscillator; step 2: use the 10 ms synchronous pulse sync monitor block to get the sync offset between this pulse and the GPS 1 pps pulse; step 3: use the control algorithm to reconfigure the local oscillator so that the 10 ms synchronous pulse can follow the 1 pps GPS pulse.

Abstract: Methods of manufacturing high-temperature composite materials using carbon nanotube to improve the efficiency of insulation applied to propulsion systems for aerospace equipment including 5 steps: step 1: select necessary materials and equipment, step 2: disperse MW-CNTs in the polar solution, step 3: distribute MW-CNTs evenly in the resin, step 4: eliminate residual solvents, step 5: curing phenolic resin composites.

Abstract: The invention proposed the catadioptric system, which consists of two main components: the first component comprising the two reflective mirrors, in which surface distortion of mirror 1 is parabolic, surface distortion of mirror 2 is aspheric; the second component is a relay consisting of three lenses: lens 1, lens 2, and lens 3 arranged after the medial image plane correspondingly; the second component helps reduce aberration to ensure receiving good quality image at a plane of the sensor.

Abstract: A method for uplink closed loop power control in advanced wireless systems which adaptively adjusts target signal-to-interference noise ratio (SINRtarget) in order to achieve the best uplink throughput of data services is disclosed. To derive the desired target SINR, the system collects and evaluates various uplink parameters as inputs: real-time signal-to-interference noise ratio of data physical channel, terminal power headroom, and terminal buffer data status and data service requirements.

Abstract: Method for scheduling paging in telecommunication network making the list candidate base station to send paging message. This method based on the Haversine formula to calculate distance between pair of base station from position information (latitude, longitude) and filter by situation: Distance=<?*Min (which ? is 3) to make the list candidate base station for each of base station in list input. This method is useable for the telecommunication system which need to page UE for mobile terminated (MT) service.

Abstract: A method of queue design for data storage and management applies RAM data synchronization technology on many distributed nodes, both ensures storage performance and solves the problem of data loss in the system operation process; performs business separation and parallelize actions to optimize processing performance; uses simply extracted information instead of accessing the original information helps to speed up the processing ability and promptly detect events that exceed the threshold; allocates a fixed memory for the queue to ensure the safety of the whole system; in addition, provides monitoring and early warning of possible incidents. The method includes: step 1: build a deployment model; step 2: initialize the values when the application first launches; step 3: process write data to the queue; step 4: detect the threshold and process the data in the queue; step 5: remove processed data from the queue; step 6: monitor queue and early warn.

Abstract: The invention proposes the design of a pyrotechnic initiator applied in the aerospace field, including three main components: the housing, the burning bridge and the pyrotechnic dose. The housing has a protective effect and increases the power of the pyrotechnic dose, in which the number of threads and the thread length are calculated to ensure to withstand the fire pressure. The burning bridge generates heat to ignite the ignition dose, the diameter of the bridge is calculated to ensure the resistance of the burning bridge. The pyrotechnic dose consists of 3 ingredient doses, which are the ignition dose, the intermediate dose, and the fire-boosting dose. In which, the mass, composition and density of the doses are calculated to ensure that the required working pressure is created.

Abstract: The method for reducing impact of flapping links on performance of network devices is implemented in 3 steps: Step 1: initialize a number of points of the interface to define interface status; Step 2: add a number of points to T and change interface status to isolated; Step 3: the interface comes back to normal state; By all those steps above, the routers can reduce impact of flapping links on route calculation and its performance.

Abstract: Determining a target's range profiles is an important issue for coastal surveillance radars because it can give us the knowledge about the target, for example, target's type, target's structure and its length along radial direction. Some modern radars nowaday are equipped with the feature of target's range profile extraction, but the results are not accurate due to limitations in processing algorithms. The invention “system and method of determining target's range profiles for coastal surveillance radars” solves the above problem in the direction of proposing a system of technical solutions and associated algorithm improvements.

Abstract: The invention presents a system and a method for digitizing body shape from dressed human image using machine learning and optimization techniques. The invention is able to rapidly and accurately reconstruct human body shape without using costly, bulky and hazardous 3D scanners. Firstly, the system reconstructing human body shape from the dressed human image includes 2 main modules and 2 supplementary blocks, which are: (1) Input Block, (2) Pre-Processing Module, (3) Optimization Module, (4) Output Block. In which, the Pre-Processing Module comprises 4 blocks: (1) Image Standardization, (2) Clothes Classification and Segmentation, (3) Human Pose Estimation, (4) Cloth-Skin Displacement Model. The Optimization Modules comprises 2 blocks: (1) Human Parametric Model, (2) Human Parametric Optimization.

Abstract: A high magnification MWIR continuous zoom optical system is described herein that consists of the following components: a front detachable extender group, a fixed group for focusing incoming radiation, three moving groups for zooming and generating an intermediate image and a relay group. The mentioned optical system has the ability to work with MWIR radiation (3-5 ?m) and generate a thermal image from the gathered radiation. The system also has the ability to zoom continuously in a wide variable focal length range with a high magnification ratio of 20×. With the use of a cooled detector, the combined system allows its user to be able to receive high quality thermal images in all FOV configurations.

Abstract: The invention relates to a low profile antenna, operating over a wide range of frequencies. The dual-polarized wideband antenna consists of: radiating elements, ground plane, metallic walls, coaxial cables, split-ring slots. The antenna is fed by coaxial cables at feed points, which are surrounded by split-ring slots. The antenna can be utilized as an element in an array to provide particular radiation pattern.

Abstract: The invention refers to the two-axis direct-drive rotation mechanism for observation device with design drive block inside assembly tilt-axes for a multi-sensor surveillance device used for unmanned vehicles. This is mechanical mechanism performs rotate pan-tilt axis by direct drive motor. This mechanism include of main components: assembly pedestal, assembly pan-axis and assembly tilt-axis. Electronic circuits, encoders, mechanism, motor are optimized arranged and scientific designed the layout space and the weight of the structure. This mechanism can integrate optical sensors such as infrared cameras, high resolution camera, laser rangefinder.

Abstract: The invention offers an ultracapacitor-based power system solution with four main functional blocks which are power conditioning block, monitoring block, charge-discharge block and protection block. The proposed system has the advantage of working well in the environment of vibration, high temperature, has a large capacity to provide a large amount and radiates less heat compared to systems using traditional batteries. In addition, the system has functions to protect and stabilize the output voltage, and the operating parameters of the system is monitored continuously.