"Transmitter receiver" Essays and Research Papers

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    circuit is easy to build .Two IR transmitter-receiver pairs are used at the passage: one pair comprising IR transmitter IR TX1 and receiver phototransistor T1 is installed at the entry point of the passage‚ while the other pair comprising IR transmitter IR TX2 and phototransistor(TSOP sensor) T2 is installed at the exit of the passage. The IR signals from the IR LEDs should continuously fall on the respective phototransistors‚ so proper orientation of the transmitters and phototransistors is necessary

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    Portable Touch Screen

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    Portable Touch Screen ABSTRACT The paper aims at design of a portable system which can be mounted anywhere‚ possibly on a desktop or phone screen or projected screen and use the surface as a touch screen. For e.g. If the desktop is projected to a white screen mounted on a wall‚ the presenter can directly touch the white screen and perform all the mouse actions using his finger as the arrow without physically going near the system or seeking help of a system operator. Also if the system is

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    Radars

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    features and benefits of military radar‚ system configuration of a typical military radar‚ operating the radar‚ system functions‚ various terminal equipments used along with their functions and some of the important parts of the radar such as transmitterreceiver‚ antenna‚ AFC (Automatic Frequency Control) etc. MILITARY RADARS INTRODUCTION Military radar should be an early warning‚ altering along with weapon control functions. It is specially designed to be highly mobile and should be such that it

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    Free Space Path Loss Model

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    prediction in certain areas. Propagation path loss models are used for calculation of electromagnetic field strength for the purpose of wireless network planning during preliminary deployment. Path loss model describes the signal attenuation from transmitter to receiver antenna as a function of distance‚ carrier frequency‚ antenna heights and other significant parameters like terrain profile (urban‚ suburban and rural). In this section various path loss models are discussed. 3.1 Free Space Path Loss Model

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    Real world Applications of Electronics This chapter introduces some of the real world applications of Electronics; 1. Audio Systems 2. Radio Transmission & Reception 3. Control Systems 1. AUDIO SYSTEMS: Any system operating at audio frequencies (20 to 20‚000 Hz) is called an Audio System‚ e.g. an intercom‚ music systems etc. Following diagram (fig.1.1) shows the main features of such an audio system; FIGURE 1.1: Main blocks of an audio system 1.1 Radio tuner: It receives radio signals and converts

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    4G MOBILE COMMUNICATION

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    width efficiency is achieved through 16-PSK Modulation. The data is transmitted through DSSS concept. In receiver module‚ the data is received through demodulator and decoder. BLOCK DIAGRAM: TRANSMITTER .... … … … RECEIVER: … …. IMPLEMENTATION Transmitter & Receiver 1. The data to be transmitted through the channel is obtained from PC as ASCII. 2. The data is encoded

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    MIMO-OFDM VISIBLE LIGHT COMMUNICATION SYSTEM WITH LOW COMPLEXITY SUBJECT: MODERN SATELLITE COMMUNICATION SUBJECT CODE: EEE 637 SUBMITTED BY‚ M.TECH COMMUNICATION ENGINEERING (2nd SEMESTER) SCHOOL OF ELECTRONICS ENGINEERING (SENSE) VELLORE INSTITUTE OF TECHNOLOGY VELLORE‚ TAMIL NADU - 632014 ABSTRACT Visible Light Communication (VLC) systems are being developed with the ultimate aim to create ultra-high-speed‚ high security‚ biologically friendly communications networks that

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    section i.e. transmitter and receiver section. Transmitter Section: – The logic of this section is simple and is build around most versatile IC NE555 (IC1)‚ configured as astable multivibrator to produce frequency about 38 KHz. This is so‚ because IR module receiver used here works in range of 38 KHz frequency. Timing component of infrared remote control switch is resistor R1 and R2 and capacitor C2‚ determine the range of oscillating. Where‚ formula of generated frequency (F) from transmitter section

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    other modes.” Communication requires a sender‚ a message‚ and a recipient‚ although the receiver need not be present or aware of the sender’s intent to communicate at the time of communication; thus communication can occur across vast distances in time and space. Communication requires that the communicating parties share an area of communicative commonality. The communication process is complete once the receiver has understood the message of the sender. The Source idea is the process by which one

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    Message classes command set-speed value: integer set-inertia value: unsignedinteger estop Dept. of CSE&IT‚ DBCET‚ Guwahati 10 Subsystem collaboration diagram Shows relationship between console and receiver (ignores role of track): 1..n: command :console :receiver Dept. of CSE&IT‚ DBCET‚ Guwahati 11 Typical control sequence :console set-inertia set-speed set-speed

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