Abstract:
본 발명의 일 실시예에 따른 능동 탐지 방식의 수중 운동체는, 제 1 주파수 대역 및 제 2 주파수 대역에서 음향 신호를 송신할 수 있는 송신부 - 상기 제 2 주파수 대역은 상기 제 1 주파수 대역과 상이함 - 와, 상기 송신된 음향 신호가 수중 표적으로부터 반사되는 반향 신호를 포함하는 수신 신호를 수신하는 수신부를 포함하되, 상기 수중 운동체가 상기 수중 운동체와 동일한 구성의 다른 수중 운동체와 함께 운용되는 경우, 상기 수중 운동체는 상기 다른 수중 운동체가 운용되는 주파수 대역과 상이한 주파수 대역에서 운용된다.
Abstract:
PURPOSE: An encoding system and a method thereof are provided to strongly protect privacy by using an anonymity ID. CONSTITUTION: A cryptosystem (100) comprises a controller (110) and a communication unit (120). The communication unit obtains encryption information for encoding specific data corresponding to a first user from a server associated with a key distribution center. The controller produces a public key and anonymous ID for the first user based on encryption information which is obtained by controlling the communication unit and produces a coded message based on the public key and specific data. The controller produces a message certification code based of the anonymous ID and transmits the anonymous ID, coded message and message authentication code to a server associated with a management center. [Reference numerals] (110) Controller; (120) Communication unit; (130) Memory unit
Abstract:
PURPOSE: A high speed technique of simulation execution is provided to perform high speed simulation which is required in simulation analysis, thereby supplying high speed simulation environment based on parallel and cluster computing environment. CONSTITUTION: A controller PC receives a control command of a user through a user interface (UI) and controls computing environment based on the control command. Worker PCs receive the control command from the controller PC and receive test cases based on the control command. The worker PCs reassign setting simulation commands to the test cases by using cores included in the worker PCs. The cores receive a simulation application program and a scenario file which is executed in the simulation application program from the controller PC and execute simulation.
Abstract:
본 발명은 FM 표적신호 검출기 및 표적신호를 검출하는 방법에 관한 것이다. 본 발명은, FM 신호를 이용하여 표적에 대한 상관정도를 구하여 표적이 존재하는지 아닌지를 검출하고; 다수의 표적을 식별하기 위한 신호처리 과정에서 FM 도플러 상관기의 결과들을 재정렬시키고, 또한 그 FM 도플러 상관기의 합을 구하여 이용하여, FM 신호를 이용한 표적에 대한 신호 검출함으로써; 거리분해능과 다수의 표적을 식별하는 성능을 향상시키고 또한 잡음에 강한 효과가 있다.
Abstract:
PURPOSE: An analog-digital hardware-in-the-loop simulation apparatus for testing the performance of an underwater target detecting device is provided to lower development cost and lower development period of the hardware-in-the-loop simulation apparatus by the simple designed structure. CONSTITUTION: An analog tester(110) simulates analog target signals and inputs the signals to an analog processing board. The analog tester receives the signals outputted from the analog processing board and tests the operation state of the analog processing board. A digital tester(120) simulates the beam targeting signal and inputs the signal to a digital processing board of an underwater target detecting device. The digital tester receives the signal outputted from the digital processing board and tests the operation state of the digital processing board.