ID 原文 译文
15235 针对隐蔽通信的任务性能评估问题,首先提出隐蔽通信下的任务性能评估指标,然后比较了通断管控、功率管控以及功率和速率联合管控3种不同策略下的隐蔽通信任务性能,最后通过仿真验证了不同管控策略的效果。 To evaluate the task performance of covert communication, this paper firstly proposes the task performance evaluation in-dex under covert communication, and the performance of covert communication under three different strategies of on-off control,power control and combined power and rate control are compared. Finally, the effects of different control strategies are verified through simulation.
15236 仿真结果表明,功率和速率联合管控策略的通信时长为通断管控策略的2.24倍,为功率管控策略的1.57倍,大大提高了隐蔽通信的可通时间,任务性能最佳。 The simulation results show that the communication duration of the combined power and rate control strategy is2. 24 times that of the on-off control strategy and 1. 57 times that of the power control strategy, which greatly improves the commu-nication time of covert communication and the task performance is the best.
15237 GMSK(高斯最小偏移键控)调制技术具有较高的频谱调制效率,适用于航空航天高码率遥测领域。 GMSK( Gaussian filtered minimum shift keying) modulation technology has high spectrum modulation efficiency, which is suitable for aerospace high bit rate telemetry.
15238 高斯低通滤波器是GMSK调制技术的关键单元。 Gaussian low pass filter is the key unit of GMSK modulation technology.
15239 介绍了高斯低通滤波器的设计原理,通过采用LUT查表法和异或运算的方法在Xilinx的FPGA中实现了一种支持任意码率、低资源消耗的高斯低通滤波器。 The design principle of Gaussian low pass filter was introduced, a Gaussian low-pass filter with arbitrary bit rate and low resource consumption was implemented in Xilinx FPGA, with LUT look-up table method and XOR operation used.
15240 对仿真和实现结果进行分析,该滤波器在未使用DSP48E1s资源和较少的LUT资源条件下实现了任意码率切换功能。 Arbitrary rate switching function was achieved without using DSP48 E1 s resources and less LUT resources through the simulation and implementation results.
15241 针对传统电梯控制系统存在的质量虽未达到电梯系统的阈值设定,但电梯内部空间被占满,导致依据质量指标判定,响应外部请求而使门控进行无效打开的问题,对电梯控制系统进行优化设计。 In view of the fact that the quality of the elevator system does not reach the threshold of the elevator system, but the internal space of the elevator is occupied, resulting in responding to external control and making the door control invalid open only according to the quality index. The elevator control system is optimizedand designed.
15242 系统釆用STM32单片机作为主控芯片,利用光敏传感器进行电梯空间占用率的感知。采用LabVIEW搭建上位机,对电梯运行数据实时监测。 The system uses STM32 microprocessor as the main control chip, and the optical sensor is designed by using photosensitive resistor to perceive the space occupancy of elevator,and the elevator space occupancy is sensed by using LabVIEW to build the upper computer to monitor the elevator operation data in real time.
15243 测试结果表明,该系统能够准确检测电梯空间占用率,并根据空间占用率进行电梯运行控制,解决了因无法判定电梯内部空间占有率而产生的门控无效打开问题,极大节约了电力资源,节省了乘客搭乘时间,提高了电梯的运行能效。 The test results show that the system can accurately detect the elevator space occupancy rate and control the elevator operation according to the space occupancy rate, which solves the problem of invalid opening of the door control caused by the inability to determine the space occupancy rate of the elevator.
15244 提取有效的负荷运行数据特征对于提高非侵入式负荷识别的精度具有重要作用。 Extracting effective characteristics of load operation data plays an important role in improving the accuracy of non-intru-sive load identification.