ADCL-10700: Advanced Digital Communication Lab

Curriculum Objectives
* To understand basic theories of advanced digital communication system
* To design and implement digital modulator and demodulator
* To understand the applications of digital modulator and demodulator circuits.
* To be familiar with the applications of high efficiency communication modulator circuits.

Curriculum Outline
* Design and Implementation of CVSD encoder and decoder
* Design and implementation of QPSK and QAM modulators and demodulators
* Design and implementation of DSSS and BHC, and convolutional codes encoders and decoders
* Design and implementation of GMSK modulators and demodulators

The Advanced Digital Communication Lab comes with 7 different experiment boards, all conveniently stored in a metal case that can be sat upright or sideways.

ADCL-10701
Chapter 1: CVSD Modulator
    Sampling frequency: 32kHz~ 50kHz
    Sampling frequency Mode: TTL Level
 
    Audio signal: 500Hz ~ 1kHz
    Modulator output mode: TTL Level

Chapter 2: CVSD Demodulator

    Sampling frequency: 32kHz~ 50kHz
    Sampling frequency mode: TTL Level
 
    Audio signal: 500Hz ~ 1kHz

ADCL-10702
Chapter 3: QPSK Modulator
     CLK: 600 Hz ~ 1kHz
     CLK mode: TTL Level
     Data rate: 300 Hz ~ 500 Hz
     Data mode: TTL Level
     Carrier frequency: 20 kHz

Chapter 4: QPSK Demodulator
     CLK: 600 Hz ~ 1kHz
     CLK mode: TTL Level
     Data rate: 300 Hz ~ 500 Hz
     Data mode: TTL Level
     Carrier frequency: 20 kHz

ADCL-10703
Chapter 5: QAM Modulator
     CLK: 20 Hz ~ 200 Hz
     CLK mode: TTL Level
     Data rate: 10 Hz ~ 100 Hz
     Data mode: TTL Level
     Carrier frequency: 20 kHz
     Data generated mode: Pseudo Random Generator
Chapter 6: QAM Demodulator
     CLK: 20 Hz ~ 200 Hz
     CLK mode: TTL Level
     Data rate: 10 Hz ~ 100 Hz
     Data mode: TTL Level
     Carrier frequency: 20 kHz
     Data generated mode: Pseudo Random Generator

ADCL-10704
Chapter 7: DSSS Encoder
     Basic Spread Spectrum Encoder
     Original data length: 4 bits
     Data input mode: Dip Switch
     Data length of spread spectrum code: 2 bits
     Spread spectrum code input mode: Dip Switch
     Data length after encoded: 8 bits
     64-bit Spread Spectrum Encoder
     Original data length: 8 bits
     Data input mode: LED Display
     Data length of spread spectrum code: 8 bits
     Spread spectrum code input mode: Dip Switch
     Data length after encoded: 64 bits

Chapter 8: DSSS Decoder
     64-bit Spread Spectrum Decoder
     Data length before decoded: 64 bits
     Data length before encoded: 8 bits
     Original data display mode: LED Display
     Data length of spread spectrum code: 8 bits
     Spread spectrum code input mode: Dip Switch
ADCL-10705
Chapter 9: BCH Encoder
    4-bit BCH Encoder
     Original data length: 4 bits
     Data length after encoded : 7 bits
     Error detection: 1 bit
    8-bit BCH Encoder
     Original data Length: 8 bits
     Data length after encoded : 12 bits
     Error control: 1 bit
     Error detection: 1 bit
Chapter 10: BCH Decoder
    4-bit BCH Decoder
     Original data length: 4 bits
     Data length after encoded : 7 bits
     Error detection: 1 bit

    8-bit BCH Decoder
     Original data length: 8 bits
     Data length after encoded : 12 bits
     Error control: 1 bit
     Error detection: 1 bit
ADCL-10706
Chapter 11: Convolutional Codes Encoder
    (2.1.2) Convolutional Codes Encoder
     Code rate: 1/2
     CLK: 1 Hz ~ 10 Hz
     Data input mode: Series Input
     Data length after encoded : 2 bits

     Error detection: 1 bit

    (2.1.3) Convolution Codes Encoder
     Code rate: 1/2
     CLK: 1 Hz ~ 10 Hz
     Data input mode: Series Input
     Data length after encoded : 2 bits

     Error detection: 1 bit

Chapter 12 : Convolutional Codes Decoder
    Viterbi Decoder
     CLK: 1 Hz ~ 10 Hz
     Data input mode: Series Input
     Data length after encoded : 2 bits

     Error detection: 1 bit
ADCL-10707
GMSK Modulator
     CLK: 600 Hz ~ 2kHz
     CLK mode: TTL Level
     Data rate: 300 Hz ~ 1 kHz
     Data mode: TTL Level
     Carrier frequency: 20 kHz
     Modulation index: 0.5
GMSK Demodulator
     CLK: 600 Hz ~ 2kHz
     CLK mode: TTL Level
     Data rate: 300 Hz ~ 1 kHz
     Data mode: TTL Level
     Carrier frequency: 20 kHz
     Modulation index: 0.5

 

 

Optional Equipments

FG-442002: Function Generator and DC Power Supply (optional)
Function Generator:
     Two signal output ports
     Freq. Range: 10 Hz ~ 100KHz and 100Hz ~ 1 MHz
     Waveforms: Sine, Triangle, Square, TTL Pulse
     Amplitude: 10 Vpp
     Built-in 6-digit frequency counter
     Large 0.5" LED display
     Overload protection
DC Power Supply:
     Triple bipolar voltage output
     Constant voltage operation
     Low ripple and noise

Oscilloscope(Optional)

   

 

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