# HW2 - division multiplex the two sequences 5 The 10 sample...

This preview shows pages 1–2. Sign up to view the full content.

Signal Compression (ECE 242) April 7, 2011 G i b s o n Homework No. 2 Due on April 14 th 1. Use Eqs. (9.27) and (9.28) to verify the step points and output levels for the 4 level Gaussian quantizer in Table 9.6 of Sayood. 2. Do Problem 1 on page 270 of Sayood. 3. An exact closed form expression for the rate distortion function of a memoryless Gaussian source with zero mean and unit variance subject to the absolute value of the error fidelity criterion cannot be found. However, a lower bound can be developed. Plot the lower bound given by 2 2 1 () l o g , 22 L RD eD πσ = for 2 0 2 D πσ ≤≤ 4. Message m 1 (t) is sampled 8000 times/sec to yield the values 8, 291, 504, 172, -12, - 210, -525, and -268. Message m 2 (t) is similarly sampled to produce 28, 127, 300, 492, 299, 131, 54, and 6. Encode these samples using the table on the next page and time-

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: division multiplex the two sequences. 5. The 10 sample values taken from a zero mean, variance 4 Gaussian distribution given by -2, -1.45, -0.2, +0.15, +0.24, +0.68, +2.2, +2.9, +3.6, +3.9, +4.95 are to be quantized using a 16-level MMSE Gaussian quantizer and encoded using a folded binary code. What are the resulting binary sequence and output amplitudes? 6. The uniform and nonuniform quantization tables in Chapter 9 of Sayood are for unit variance inputs. Show that if then we simply scale the quantizer step points and output levels by 2 1 σ > . From J. D. Gibson, Principles of Digital and Analog Communications , 1993....
View Full Document

{[ snackBarMessage ]}

### Page1 / 2

HW2 - division multiplex the two sequences 5 The 10 sample...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online