NI-RFmx Waveform Creator helps you in encoding the bit sequence (data source) before modulating. There are five types of encoding are available.

Differential

Let b_{n} be the binary input sequence at time n and d_{n} be the binary output sequence at time n after encoding. d_{n} is then defined as:

where

is an EXCLUSIVE OR operation.

GSM Differential

Let b_{n} be the binary input sequence at time n and d_{n} be the binary output sequence at time n after encoding. d_{n} is then defined as

where

is an EXCLUSIVE OR operation and
is the NOT of x.

Inverted

Let b_{n} be the binary input sequence at time n and be d_{n} the binary output sequence at time n after encoding. d_{n} is then defined as

where

is the NOT of x.

NRZ Inverted (Non return to zero inverted)

Let b_{n} be the binary input sequence at time n and d_{n} be the binary output sequence at time n after encoding. d_{n} is then defined as

where

is an EXCLUSIVE OR operation and
is the NOT of x.

Manchester

Let b_{n} be the binary input sequence of length n and d_{k+1} be the binary output sequence of length k+1 after encoding. d_{k} and d_{k+1} are then defined as:

d_{k} = b_{n}

where k = 2_{n} and

is the NOT of x.

WAS THIS ARTICLE HELPFUL?

Helpful

Not Helpful

Thank you for your feedback.

You changed your response to Helpful

You changed your response to Not Helpful

This site uses cookies to offer you a better browsing experience. Learn more about our privacy policy.