psm4 optics

calibration, robustness is not high.3. Camera Imaging Model: The image is the reflection of the space object through the imaging system, that is, the projection of the space object on the image plane. The gray level of each pixel in the image reflects the intensity of the reflected light on the surface of the space object, and the position of the point on the image is related to the geometrical position of the corresponding point on the surface of the space object. The relationship of these pos

, and the speed is fast, but when there are more users, it is easy to drop the cable. ADSL is a dedicated access method, the access speed is stable and independent from the number of online users. I have a friend's Internet cafe (60 machines) that often gets offline after I use fiber optics. It is a local disconnection, not the entire Internet cafe. In many cases, one or two computers or more computers are offline, but other computers are running norm

development of the network, storage is no longer confined to the inside of the computer shell, the network storage is becoming the mainstream in the server field. In the storage device is the most important should be hard disk, the drive to read and write speed, capacity and quality of the pursuit of hard disk technology has undergone several changes. From the interface standard of the motherboard with the ATA (IDE), SATA, SCSI, SAS, FC and InfiniBand, they have a certain difference in interfac

.2008.11.10 (The glass Library is useful)Optis. Optisworks. STUDIO. V2007 Optical DesignCrosslight.apsys v2003.12.datecode.012804 Electronics-Optical Laser 2d/3d finite element analysis and die-form device softwarecrosslight.lastip.v2003.04.dc071503 Semiconductor laser device 2D simulation softwareCrosslight.lastip v2003.12.datecode.012804Crosslight.pics3d v2003.12.datecode.012804crosslight.procom.v2003.12.datecode.012804apollo_photonic_solutions_suite_v2.2 Next Generation optical equipment and

fiber optics.1) SDH transmission system is used in Routera and Routerb area.2) The AU-3 multiplexing path for the Routera and Routerb regions.3) Routerb for Alcatel Equipment4) The clock mode of the Routerb CPOs interface is from clock mode.5) Routerb CPOs interface Overhead byte C2 is 3, S1 for 14,j0 and J1 are in 16-byte mode, where J0 is ABC, J1 is xyz.[Huawei]sysname RouterA[Routera]interface CPOs 1/0/0[Routera-cpos1/0/0]multi-channel Align-mode

industry's lofty ideals to provide the possibility. The great changes in cyber-creation began with the popularity of online shopping. In the past few years, the demand of the e-commerce market has been greatly enhanced, in the development of the world e-commerce market, some developed countries, led by the United States, occupy the central part of e-commerce market, the main force of e-commerce market, and some developing countries, led by China, have a rapid rise in e-commerce market. Is becom

First bamboo shoots: 2016 dream set sail-Chengdu on the first bamboo shoots technology ventureTime: March 12, 2016 Week 6 13:30-17:00Location: A9 area, Tianfu Software Park. Very coffeeOrganizer: First bamboo Shoots technologyCo-organizer: Very coffee, 36Kr, Hung Learn jinxin, Ming Ren capitalCo-organizer: Rong Chong Plaza, Knight Island joint office, Optics Valley pioneering coffee, excellent shellfish space, testin,Coding, Red Hat Law, micro-chain,

, network operating system itself is not large, configuration is occupied memory resources are not manyRom:cmos/bios, used to load the bootloader for booting the kernelFlash: Equivalent to a hard disk, mainly used to store operating system and configuration files (that is, commands, usually switches)NVRAM: Non-volatile memory, mainly used by routers to store configuration filesInterface SystemThe number of different device interfaces is different, that is, the number of network cards is differen

development. Accelerate the development of smart home, virtual reality and other fields of new information consumer electronics technology, support "Product + Service" mode, promote smart TV, virtual reality headset display equipment, such as product development and industrialization. To promote the development and scale-up of core information communication equipment, support intelligent hardware development and industrialization, and promote Internet-based technology innovation and model innov

responsibility in the design pattern, which is actually the embodiment of this principle. Each layer only does what it is supposed to do and does it well, which is good for expansion and maintenance. The actual transmission is a byte streamFour-story IntroductionNext, let's give you a brief introduction to each layer. link Layer : This is the closest to the hardware layer, also known as the "bottom." It mainly refers to our commonly known network card and network card driver, network card is th

existing theoretical knowledge to deduce a number of inferences, But one: The problem is not entirely likely to be a false inference, and the other: his inference in real life can not find a prototype, can not guide the practice. Strictly speaking, I am not an idealist, the theory of political science and practice has always been to guide me to learn scientific and cultural knowledge of the beacon (at least I think that computer science and technology should be in this direction).In fact, our c

amplitude, space frequency and phase, and the composition and distribution of various spatial frequency components in the image are called spatial spectrum. This decomposition, processing, and analysis of spatial frequency characteristics of images is called spatial frequency domain processing or wave number domain processing. and the time domain and the frequency domain are similar to each other, and the spatial domain and the spatial frequency domain can be converted to each other.The spatial

local computer through the local network, and the modem converts the digital signal to analog, making it suitable for transmission over telephone lines, cable TV cables and wireless telephone lines. At the other end of the transmission line is another modem that converts the analog signal back to the digital signal and is processed by the next network node. The destination address and source address of the node are discussed later.Large enterprises and relatively new dwellings usually use fiber

thermometer is placed in the liquid to be measured, the optics are placed in the light path, and so on. These include: including relations, side-by-side relations, concatenation relations, and the connection relationship, two instruments are connected in a certain way, indicating that the two instruments have a specific connection relationship. This connection can be either a connection made by a user with a mouse interaction, or a connection establi

have the heart of a high person, there is a spirit of exquisite life. Even if you do not have a few money in your pocket, it is also very attractive. I have lived in China for four years. All campuses add up I have eaten 31 canteens. I have eaten at least two times per dish in every canteen. I know which canteen is the best dish, and the difference between the same dishes in different canteen tastes.If you are a Chinese science son, can you do it? This has nothing to do with money, the canteen

distance of continuous variable needs to satisfy the conditions of reflexive symmetry and triangular inequality, and Matrix D is a symmetric matrix, and the element on the diagonal is 0.The similarity coefficient should satisfy the normalization of the reflexive symmetry to satisfy the triangular inequalitiesA method of clustering based on segmentation: K-means algorithm K-center value arithmeticBased on the hierarchical clustering method, the method using distance as a measure of the standard

Protocol (Medium access Control,mac) specifies the rules for frames to be transmitted over a link. When there is only one on the end, you can send it randomly, Mac does not limit. When multiple access issues occur, the MAC protocol coordinates multiple node transfers Reliable delivery Indicates that there can be no error passing frames between the two link layer nodes. Use a similar acknowledgment and retransmission with TCP. Generally used for links with large error rates (

of the San: storage devices (disk arrays), servers, connected devices (network switching devices and fiber optics, etc.), storage management software. The advantage of a SAN is that all storage devices are highly shared, and all storage devices can be centrally managed with redundant backup capabilities, and a single server outage system still works. 650) this.width=650; "title=" 233169_thumb1 "style=" border-top:0px; border-right:0px

mistakenly put their own hand in the mirror as the left hand of the person in the mirror.To illustrate this, now close your eyes, imagine in your mind, or if you have the conditions, you can actually do the experiment. Suppose you stand in front of a mirror and hold a piece of paper in your hand, the paper is translucent and there is a word on the paper. Now flip it horizontally so that the word is in the mirror, and because the paper is translucent, you can see the same word from the back of t

geometric artboards are a common tool used in the teaching of mathematics and physics. Help a lot of users to complete their own courseware, to provide a lot of convenience to everyone. Let us introduce to you what are the features of Geometry artboards?The characteristics of geometry board are mainly embodied in the following aspects:First, convenient communication toolsSince each artboard can be modified and saved by the user according to its own intent, it is particularly well suited for geom