Abstract: A memory array and an operation method of the memory array are provided. The memory array includes first and second ferroelectric memory devices formed along a gate electrode, a channel layer and a ferroelectric layer between the gate electrode and the channel layer. The ferroelectric memory devices include: a common source/drain electrode and two respective source/drain electrodes, separately in contact with a side of the channel layer opposite to the ferroelectric layer, wherein the common source/drain electrode is disposed between the respective source/drain electrodes; and first and second auxiliary gates, capacitively coupled to the channel layer, wherein the first auxiliary gate is located between the common source/drain electrode and one of the respective source/drain electrodes, and the second auxiliary gate is located between the common source/drain electrode and the other respective source/drain electrode.

Abstract: An unmanned aerial vehicle (UAV) navigation obstacle avoidance system and method thereof are introduced. The UAV navigation obstacle avoidance system provides with functions of automatically controlling the UAV motive power sources to control the flight of UAV and avoid the obstacle. The system comprises a sensing device, a signal processing module, a communication module, a control module. The sensing device detects the relative direction, velocity and distance between a UAV and a dynamic or static obstacle. The sensing device also detects the real-time position, flight attitude and inertia signals of the UAV. The signal processing module generates a UAV flight control signal. The control module receives the UAV flight control signal and controls each of the UAV motive power sources. Therefore, the system achieves the purpose of controlling flight and obstacle avoidance and forward to the original planned follow-on flight route after the avoidance.

Abstract: An unmanned aerial vehicle (UAV) navigation obstacle avoidance system and method thereof are introduced. The UAV navigation obstacle avoidance system provides with functions of automatically controlling the UAV motive power sources to control the flight of UAV and avoid the obstacle. The system comprises a sensing device, a signal processing module, a communication module, a control module. The sensing device detects the relative direction, velocity and distance between a UAV and a dynamic or static obstacle. The sensing device also detects the real-time position, flight attitude and inertia signals of the UAV. The signal processing module generates a UAV flight control signal. The control module receives the UAV flight control signal and controls each of the UAV motive power sources. Therefore, the system achieves the purpose of controlling flight and obstacle avoidance and forward to the original planned follow-on flight route after the avoidance.

Abstract: The invention discloses a leaky-wave dual-antenna system comprising a transmitting antenna array and a receiving antenna array. The transmitting antenna array comprises plural first microstrips and plural corresponding first differential circuits, and each of the first differential circuit matches the corresponding first microstrip by a L-type matching network; the receiving antenna array comprises plural second microstrips and plural corresponding second differential circuits, and each of the second differential circuit matches the corresponding second microstrip by a L-type matching network. A first end and a second end of each of the first differential circuits are respectively connected to the corresponding first microstrip; a third end and a fourth end of each of the second differential circuits are respectively connected to the corresponding second microstrip.

Abstract: The invention discloses a leaky-wave dual-antenna system comprising a transmitting antenna array and a receiving antenna array. The transmitting antenna array comprises plural first microstrips and plural corresponding first differential circuits, and each of the first differential circuit matches the corresponding first microstrip by a L-type matching network; the receiving antenna array comprises plural second microstrips and plural corresponding second differential circuits, and each of the second differential circuit matches the corresponding second microstrip by a L-type matching network. A first end and a second end of each of the first differential circuits are respectively connected to the corresponding first microstrip; a third end and a fourth end of each of the second differential circuits are respectively connected to the corresponding second microstrip.

Abstract: The present invention relates to a target tracking method of radar with frequency modulated continuous wave, which transmits a transmitted signal to receive a return wave of the transmitted signal that is used for detecting the target and obtaining the relative distance between the target and the radar. The target tracking method includes transmitting a frequency modulated continuous wave and receiving the reflected wave; getting a reflected wave corresponding to the target by detecting the reflected wave; getting a range gate error by seeking the plurality of the range gates corresponding to the reflected wave; and getting a position and a speed of the target at next time by knowing the position of the target at present time basis of the range gate error. Hence, the relative distance between the radar and the target is got.

Abstract: The present invention relates to a tracking target method of radar with frequency modulation continuous wave, which transmits a transmitted signal to receive a return wave of the transmitted signal that is used for detecting the target and obtaining the relative distance between the target and the radar. The tracking target method includes transmitting a frequency modulation continuous wave and receiving the reflective wave; getting a reflective wave corresponding to the target by detecting the reflective wave; getting a range gate error by seeking the plurality of the range gates corresponding to the reflective wave; and getting a position and a speed of the target at next time by knowing the position of the target at present time basis of the range gate error. Hence, the relative distance between the radar and the target is got.

Abstract: This invention relates to a frequency modulation of continuous wave (“FMCW”) radar altimeter capable of controlled linear sweep modes. The FMCW radar altimeter is characterized by the following functions: (1) adopts sweep up frequency and sweep down frequency to solve problems of distance and doppler signal mixture; (2) injects a random generated variable time delay in between sweep intervals to overcome interferences among different altimeters; and (3) switches different sweep frequency bands in accordance with different altitudes.