给定m行n列的图像各像素点的灰度值，要求用如下方法对其进行模糊化处理： 1.四周最外侧的像素点灰度值不变； 2.中间各像素点新灰度值为该像素点及其上下左右相邻四个像素点原灰度值的平均(舍入到最接近的整数)。
上传时间： 2020-04-21
上传用户：h149
Zemax2010版本中文操作手册，翻译流畅，可以顺利阅读，适合Zemax初学者。适用于照明设计、成像设计、衍射光学设计等等。
标签： 光学设计
上传时间： 2020-04-22
上传用户：1qaz2wsx
豆丁网、百度文库免费下载器,FISH。绿色版,无需安装。冰点、fish免费下载工具 Fish免费下载工具 冰点文库下载器 最新版Fish-v323
标签： XFishv323
上传时间： 2020-05-12
上传用户：cy77
该三相逆变器采用内部pwm产生脉冲信号，控制逆变器的开断。 由于脉宽调制和输出阻抗的存在，会导致输出电压存在谐波。 需要对逆变器输出的方波信号进行滤波后，得到正弦基波。 从模型运行结果电压电流波形前后对比，LC滤波器滤波效果明显。
上传时间： 2020-05-13
上传用户：CCTV
该三相逆变器采用内部pwm产生脉冲信号，控制逆变器的开断。 由于脉宽调制和输出阻抗的存在，会导致输出电压存在谐波。 需要对逆变器输出的方波信号进行滤波后，得到正弦基波。 从模型运行结果电压电流波形前后对比，LC滤波器滤波效果明显。
上传时间： 2020-05-13
上传用户：CCTV
该模型采用滞环控制技术，通过将逆变器输出电流与理想参考电流比较后，得到理想的输出电流波形。跟踪效果较好。
标签： matlab
上传时间： 2020-05-13
上传用户：CCTV
Wireless technology has been evolving at a breakneck speed. The total number of cell-phones in use (as of 2011) was over 6 billion for a 7 billion world population [1] constituting 87% of the world population. Additionally, with user convenience be- coming paramount, more and more functions are being implemented wirelessly.
标签： Front-Ends Cognitive Receiver Radio
上传时间： 2020-05-26
上传用户：shancjb
This research work aims at eliminating the off-chip RF SAW filters from fre- quency division duplexed (FDD) receivers. In the first approach, a monolithic passive RF filter was constructed using on-chip capacitors and bondwire inductors. The bond- wire characteristics were studied in details and the effect of mutual inductive coupling between the bondwires on the filter performance was analyzed. Based on that, a bond- wire configuration was proposed to improve the frequency response of the filter. The filter was implemented in 0.18 µm CMOS process for WCDMA applications.
标签： Interference Mitigation Techniques
上传时间： 2020-05-27
上传用户：shancjb
Modeling and simulation of nonlinear systems provide communication system designers with a tool to predict and verify overall system performance under nonlinearity and complex communication signals. Traditionally, RF system designers use deterministic signals (discrete tones), which can be implemented in circuit simulators, to predict the performance of their nonlinear circuits/systems. However, RF system designers are usually faced with the problem of predicting system performance when the input to the system is real-world communication signals which have a random nature.
标签： Nonlinear_Distortion_in_Wireless_ Systems
上传时间： 2020-05-31
上传用户：shancjb
In this research, we have designed, developed implemented a wireless sensor networks based smart home for safe, sound and secured living environment for any inhabitant especially elderly living alone. We have explored a methodology for the development of efficient electronic real time data processing system to recognize the behaviour of an elderly person. The ability to determine the wellness of an elderly person living alone in their own home using a robust, flexible and data driven artificially intelligent system has been investigated. A framework integrating temporal and spatial contextual information for determining the wellness of an elderly person has been modelled. A novel behaviour detection process based on the observed sensor data in performing essential daily activities has been designed and developed.
上传时间： 2020-06-06
上传用户：shancjb
