pydsm.simulation.ds_quantize

pydsm.simulation.ds_quantize(y, n)

Quantize a signal according to a given number of levels.

Parameters:

y : real or array of reals

signal to be quantized (1 sample!). A column vector with more than 1 row if there are multiple quantizers.

n : int or vector of ints

number of quantization levels. Can be a vector to specify multiple quantizers, in this case, y must have as many rows as the entries in n

Returns:

z : real or ndarray

quantized signal (1 sample!). A column vector with more than 1 row if there are multiple quantizers.

Notes

y is quantized to:

• an odd integer in [-n+1, n-1], if n is even, or
• an even integer in [-n, n], if n is odd.

This definition gives the same step height for both mid-riser and mid-tread quantizers.