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1. Digital Communication Tools
2. Forms Of Digital Communications

Laboratory manual department of electrical & computer engineering university of central florida eel 4515 digital communications revised august 2004.

Zhihua Qu, Welcomes you! On behalf of our faculty, staff and students, I would like to welcome you to Electrical and Computer Engineering (ECE) at UCF. The ECE's vision is to offer the best undergraduate education in electrical and computer engineering, to achieve national and international prominence in selected areas of graduate study and research, and to foster partnerships and contribute to technological and economical advances in the State of Florida, the nation, and the world.

Read the whole welcome message. Engineering 1, Room 471 Students develop a solid understanding for analysis of communication signals in time domain and frequency domain. Students learn to design and simulate many types of communication circuits, and then assemble, measure, and evaluate the circuits using laboratory instruments. Additionally, an Analog Filter Design course is offered for students to develop expertise in that aspect of signal processing. Students develop competency in measurement science by utilizing modern advanced instruments, which are similar to instruments presently being used by engineers in industry. Courses Supported EEL-3552 Analog and Digital Communication Fundamentals EEL-4512 Communication Systems Laboratory Equipment, 12 Stations, each equipped with: Tektronix DPO 4034 Digital Phosphor Oscilloscope, 350 MHz, 4 Channel Tektronix AFG 3022 Dual Channel Arbitrary Function Generator, 25 MHz Tektronix DMM 4050 6 ½ Digit Precision Multimeter Agilent E3630A Triple Output DC Power Supply Global PB-60 Breadboard Dell Optiplex 960 Computer Additionally for EEL-4512, 2 Stations are equipped with: Emona tims TMS-301 Modeling System.

Design, implementation and st udies of the properties of 15 bit P.N. Sequenc e using shift re gister 2. Studies of the prop erties of A /D and D /A converter (AD7820/ADC0820 and IC L 8018A/8019A/8020A).

Digital Communication Tools

(Properties like transfer characteristics, code central line method of nonlinearity study, differential nonlinearity, integral nonlinearity, resolution etc). Study of pulse amplitude modulation and demodulation. (Studies of distortion factor of the constructed signal as a function of signal frequency & amplitude. Further study of distortion factor of filtered reconstructed signal as a function of sampling frequency and thus verify the sampling theorem). Studies of PCM transmitter and receiver.

(To measure the bit rate, bandwidth requirement and distortion factor of the reconstructed signal in presence of channel noise). Study of line coders: UPNRZ, PRZ, BPRZ, PNRZ (To study the nature of waveform in CRO and its spectrum by spectrum analyzer. At least any one of the line coders has to design, fabricated and tested). Studies of Manchester coding and decoding technique. (Studies of the nature of waveform, spectrum and self-synchronizing characteristic). Studies of PSK modulator and demodulator, connected by physical channel. Studies on FSK modulator and demodulator, connected by simulated channel 9.

Studies on ASK modulator and demodulator, connected by physical channel 10. Studies on Q PSK modulat or and demodulator, connected by either physical or simulated channel (In all above experiments, nature of the modulated waveform is to be studied by a CRO. The spectrum is to be studied with a spectrum analyzer and the essential bandwidth is to be determined; finally the reception quality is to be analyzed by cross co-relation characteristics and measurement of bit error rate in presence of channel noise). Studies on Delta modulator & Demodulator using trainer kits 12.

Forms Of Digital Communications

Studies on Adaptive delta modulation using trainer kits 13. Studies on delta signal modulation using trainer kits 14. Studies on PCM/TDM system (Multiplexing/Demultiplex ing) (Object is to measure distortion factor of the demodulated signal with variable signal amplitude and frequency, measure the essential B.W. Of the modulated signal 15.

Studies of PCM/TDM system (Multiplexer & Demultiplexer) (To study the interchannel interference and synchronization problem in multiplexer and demultiplexer system.