{"id":5521,"date":"2023-02-26T19:22:32","date_gmt":"2023-02-26T19:22:32","guid":{"rendered":"https:\/\/www.goodacademic.com\/blog\/questions\/use-matlab-for-answering-the-first-two-questions-attach-and-identify-the-code-used-for-each-part\/"},"modified":"2023-02-26T19:22:32","modified_gmt":"2023-02-26T19:22:32","slug":"use-matlab-for-answering-the-first-two-questions-attach-and-identify-the-code-used-for-each-part","status":"publish","type":"questions","link":"https:\/\/www.goodacademic.com\/blog\/questions\/use-matlab-for-answering-the-first-two-questions-attach-and-identify-the-code-used-for-each-part\/","title":{"rendered":"Use MATLAB for answering the first two questions Attach and identify the code used for each part"},"content":{"rendered":"
\n Learning Goal: <\/b>I’m working on a electrical engineering question and need the explanation and answer to help me learn.<\/p>\n

function X = quantize( s, bit, rmode, lmode )<\/p>\n

%QUANTIZE simulated fixed-point arithmetic<\/p>\n

%——-<\/p>\n

% Usage: X = quantize( S, BIT, RMODE, LMODE )<\/p>\n

%<\/p>\n

% returns the input signal S reduced to a word-length<\/p>\n

% of BIT bits and limited to the range [-1,1). The type of<\/p>\n

% word-length reduction and limitation may be chosen with<\/p>\n

% RMODE: ’round’ rounding to nearest level<\/p>\n

% ‘trunc’ 2’s complement truncation<\/p>\n

% ‘magn’ magnitude truncation<\/p>\n

% LMODE: ‘sat’ saturation limiter<\/p>\n

% ‘overfl’ 2’s complement overflow<\/p>\n

% ‘triang’ triangle limiter<\/p>\n

% ‘none’ no limiter<\/p>\n

if nargin ~= 4<\/p>\n

vq = quantize(v,3,round,sat);<\/p>\n

error(‘usage: quantize( S, BIT, RMODE, LMODE ).’);<\/p>\n

end<\/p>\n

if bit <= 0 || abs(rem(bit,1)) > eps<\/p>\n

error(‘wordlength must be positive integer.’);<\/p>\n

end<\/p>\n

Plus1 = 2^(bit-1);<\/p>\n

X = s * Plus1;<\/p>\n

if strcmp(rmode, ’round’); X = round(X);<\/p>\n

elseif strcmp(rmode, ‘trunc’); X = floor(X);<\/p>\n

elseif strcmp(rmode, ‘ceil’); X = ceil(X);<\/p>\n

elseif strcmp(rmode, ‘magn’); X = fix(X);<\/p>\n

else error(‘unknown wordlength reduction spec.’);<\/p>\n

end<\/p>\n

if strcmp(lmode, ‘sat’)<\/p>\n

X = min(Plus1 – 1,X);<\/p>\n

X = max(-Plus1,X);<\/p>\n

elseif strcmp(lmode, ‘overfl’)<\/p>\n

X = X + Plus1 * ( 1 – 2*floor((min(min(X),0))\/2\/Plus1) );<\/p>\n

X = rem(X,2*Plus1) – Plus1;<\/p>\n

elseif strcmp(lmode, ‘triang’)<\/p>\n

X = X + Plus1 * ( 1 – 2*floor((min(min(X),0))\/2\/Plus1) );<\/p>\n

X = rem(X,4*Plus1) – Plus1;<\/p>\n

f = find(X > Plus1);<\/p>\n

X(f) = 2*Plus1 – X(f);<\/p>\n

f = find(X == Plus1);<\/p>\n

X(f) = X(f) – 1;<\/p>\n

elseif strcmp(lmode, ‘none’) % limiter switched off<\/p>\n

else error(‘unknown limiter spec.’);<\/p>\n

end<\/p>\n

X = X \/ Plus1;<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Learning Goal: I’m working on a electrical engineering question and need the explanation and answer to help me learn. function X = quantize( s, bit, rmode, lmode ) %QUANTIZE simulated fixed-point arithmetic %——- % Usage: X = quantize( S, BIT, RMODE, LMODE ) % % returns the input signal S reduced to a word-length % […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":[],"disciplines":[704],"paper_types":[],"tagged":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.goodacademic.com\/blog\/wp-json\/wp\/v2\/questions\/5521"}],"collection":[{"href":"https:\/\/www.goodacademic.com\/blog\/wp-json\/wp\/v2\/questions"}],"about":[{"href":"https:\/\/www.goodacademic.com\/blog\/wp-json\/wp\/v2\/types\/questions"}],"author":[{"embeddable":true,"href":"https:\/\/www.goodacademic.com\/blog\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.goodacademic.com\/blog\/wp-json\/wp\/v2\/comments?post=5521"}],"version-history":[{"count":0,"href":"https:\/\/www.goodacademic.com\/blog\/wp-json\/wp\/v2\/questions\/5521\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.goodacademic.com\/blog\/wp-json\/wp\/v2\/media?parent=5521"}],"wp:term":[{"taxonomy":"disciplines","embeddable":true,"href":"https:\/\/www.goodacademic.com\/blog\/wp-json\/wp\/v2\/disciplines?post=5521"},{"taxonomy":"paper_types","embeddable":true,"href":"https:\/\/www.goodacademic.com\/blog\/wp-json\/wp\/v2\/paper_types?post=5521"},{"taxonomy":"tagged","embeddable":true,"href":"https:\/\/www.goodacademic.com\/blog\/wp-json\/wp\/v2\/tagged?post=5521"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}