Course Pulse modulation methods PAM, PCM, Delta

Includes:

• 1 Experiment card with PAM PCM modulator
• 1 Experiment card with PAM PCM demodulator
• 1 Experiment card with AMI/HDB3 coder/decoder
• 2 Connection cables (2 mm), 60 cm, red
• Storage case
• Labsoft browser and course software

Course contents:

• Introduction to PAM/PCM/Delta modulation, PAM/PCM/Delta demodulation, time multiplexing
• Shannon's sampling theorem
• Measuring PAM modulated signals over time
• Optimal filtering and anti-aliasing
• Identifying advantages and disadvantages of digital transmission
• Introduction to the principle quantisation of analog signals
• Generation of parallel and serial codes
• Companding methods using A law and µ law
• Determining quantising interval for a PCM transmission by measurement
• Measuring PCM coded signals over time
• Recording logarithmic transfer characteristics with companding according to a law and µ law (13 or 15 segments)
• Measuring PCM time-multiplexed signals over time
• Introduction to the key features of transmission codes
• Introduction to pseudo-ternary codes AMI, HDB3, modified AMI
• Measuring line-coded signals over time: AMI, HDB3 and modified AMI
• Transmission of information on a line along with clocking and synchronisation information
• Clock recovery and phase jitter
• Introduction to data packet formats for ISDN layer 1 (Integrated Services Digital Network)
• ISDN layer 1, investigation of position and function of frames and bits
• Investigation of a 2 channel transmission with control channel at data rates of 64 k bits per channel
• Course duration 4 h approx.