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Highlights from
Delta Sigma Toolbox

• dsdemo4fig() Window layout for the dsdemo4() function.
• 1; end end
• DocumentNTF(arg1,osr,f0,quadr... axis_handle = DocumentNTF(ntf|ABCD|mod_struct,osr=64,f0=0,quadrature=0) Plot the NTF's poles and zeros as well as its frequency-response
• ESLselect(v,sy,dw,df) sv = ESLselect(v,sy,dw,df) Select the elements of a multi-element
• H=evalMixedTF(tf,f,df) H=evalMixedTF(tf,f)
• H=evalTFP(Hs,Hz,f)
• LCObj(x,param,dbg) LCObj Compute the objective function
• LCObj1(x,param,max_radius,dbg) function [objective,constraints] = LCObj1(x,param,max_radius,dbg)
• LCoptparam2tf(x,param) LCoptparam2tf(...) Convert optimization parameters to transfer functions.
• LCplotTF(H,L0,param) LCplotTF(H,L0,param)
• NTF=clans(order,OSR,Q,rmax,op...
• NTF=clans5(order,OSR,Q,rmax,o... Version of clans for MATLAB 5 or lower
• NTF=clans6(order,OSR,Q,rmax,o... Version of clans for MATLAB >=6
• PlotExampleSpectrum(mod_struc... PlotExampleSpectrum(ntf|mod_struct,M=1,osr=64,f0=0,quadrature=0)
• [ABCDs,umax,S]=scaleABCD(ABCD...
• [H,L0,ABCD,k]=LCparam2tf(para...
• [f,g]=dsclansObj(x,order,OSR,... Objective function for clans.m
• [f1,f2,info]=designHBF(fp,del...
• [f1_saved,f2_saved,info]=desi...
• [f1_saved,f2_saved,info]=desi...
• addPIS Add the PosInvSet subdirectory of the toolbox to the current path
• axisLabels(range,incr) function s = axisLabels(range,incr)
• bilogplot(V,f0,fbin,x,y,fmt) bilogplot(V,f0,fbin,x,y,fmt) Plot two side-by-side spectra
• bplogsmooth(X,tbin,f0)
• bquantize(x,nsd,abstol,reltol)
• bunquantize(q) Calculate the value corresponding to a bidirectionally quantized quantity.
• calculateQTF(ABCDr)
• calculateSNR(hwfft,f,nsig) snr = calculateSNR(hwfft,f,nsig=1) Estimate the signal-to-noise ratio,
• calculateTF(ABCD,k)
• cancelPZ(zpk1, tol) zpk2 = cancelPZ(zpk1, tol=1e-6) Cancel zeros/poles in a zpk system
• changeFig(fontsize,linewidth,... changeFig(fontsize,linewidth,markersize) Change the settings
• circ_smooth(x,n)
• delay(x,n)
• designLCBP(n,OSR,opt,Hinf,f0,...
• designLCBP6(n,OSR,opt,Hinf,f0... Modified designLCBP for use with latest optimization toolbox
• dotplot(p,fmt) function dotplot(p,fmt)
• ds_f1f2(OSR,f0,complex_flag);
• ds_freq(osr,f0,quadrature) f = ds_freq(osr=64,f0=0,quadrature=0) Frequency vector suitable for plotting the frequency response of an NTF
• ds_hann(n)
• ds_optzeros( n, opt )
• ds_quantize(y,n)
• ds_synNTFobj1(x,p,osr,f0) y=ds_synNTFobj1(x,p,osr,f0) Objective function for synthesizeNTF()
• dsclansNTF(x,order,rmax,Hz) Conversion of clans parameters into a NTF.
• dscut(p1,y1,p2,y2)
• dsdemo4(action) A GUI-based demonstration of delta-sigma with sound.
• dsexample1 Design example for a lowpass modulator.
• dsexample2 Design example for a bandpass modulator.
• dsexample3 Design example for a continuous-time lowpass DS ADC
• dsexample4 Example quadrature bandpass modulator
• dsexpand(s,c,k,n,o)
• dsisPlot(dbg,itn,order,x,s,e,... Show some pretty pictures
• dsmap(u,ABCD,nlev,x,e,v)
• dssplit2d(u,ABCD,p)
• edgeplot(e,s,fmt) function edgeplot(e,s,fmt) Plot edges e with format fmt
• evalF0(f1,z,phi) F0 = evalF0(f1,z,phi) Calculate the values of the F0 (prototype) filter
• evalF1(f1,z,phi) F1 = evalF1(f1,z,phi) Calculate the values of the F1 filter
• evalRPoly(roots,x,k)
• evalTF(tf,z)
• exampleHBF(n) Coefficients from toolbox v2.0 documentation
• find2dPIS(u,ABCD,options) function s = find2dPIS(u,ABCD,options)
• findPIS(u,ABCD,nlev,options)
• findPattern(N,OSR,NTF,ftest,A... [data snr] = findPattern(N=1024,OSR=64,NTF,ftest,Atest,f0,nlev,quadrature,debug)
• flattenStruct(s) flattenStruct(s) Puts each field of s into the current workspace.
• frespF1(f1,f,phi) frespF1(f1,f) Plot/calculate the frequency response of the F1 filter
• frespHBF(f,f1,f2,phi,fp,msg)
• hull2d(p)
• i=outsideConvex(x,n,o,tol) function i=outsideConvex(x,n,o,tol<0>). Determine which points are outside
• impL1(arg1,n)
• infnorm(H) [Hinf,fmax] = infnorm(H) Find the infinity norm of a z-domain transfer function.
• l1norm(H) h1 = l1norm(H) Compute the l1-norm of a z-domain transfer function.
• logsmooth(X,inBin,nbin,n)
• lollipop(x,y,color,lw,ybot) lollipop(x,y,color,lw,ybot) Plot lollipops (o's and sticks)
• mapABCD(ABCD,form)
• mapCtoD(sys_c,t,f0)
• mapQtoR(Z) A = mapQtoR(Z) Convert a quadrature matrix into its real equivalent.
• mapR2Q( ABCDr )
• mod1()
• mod2()
• outconvex2d(x,p) function out = outconvex2d(x,p)
• padb(x, n, val)
• padl(x, n, val)
• padr(x, n, val)
• padt(x, n, val)
• partitionABCD(ABCD, m);
• peakSNR(snr,amp) [peak_snr,peak_amp] = peakSNR(snr,amp) Find the snr peak by fitting
• plotPZ(H,color,markersize,lis... function plotPZ(H,color='b',markersize=5,list=0)
• plotSpectrum(X,fin,fmt) plotSpectrum(X,fin,fmt) Plot a smoothed spectrum
• plotUsave(sv) Plot the elemet usage for a multi-elemet DAC
• polyplot(p,fmt) function polyplot(p,fmt)
• predictSNR(ntf,R,amp,f0)
• printmif(file,size,font,fig) printmif(file,size,font,fig) Print graph to an Adobe Illustrator file
• pulse(S,tp,dt,tfinal,nosum)
• qhull(points,str)
• realizeNTF(ntf,form,stf)
• realizeNTF_ct( ntf, form, tda...
• realizeQNTF(ntf,form,rot,bn)
• rms(x,no_dc)
• rmsGain(H,f1,f2,N)
• selectQESL(v,sy)
• simulateDSM(u,arg2,nlev,x0)
• simulateESL(v,mtf,M,dw,sx0)
• simulateHBF(x,f1,f2,mode) y = simulateHBF(x,f1,f2,mode=0) Simulate a Saramaki half-band filter.
• simulateQDSM(u,arg2,nlev,x0)
• simulateQESL(v,mtf,M,sx0)
• simulateQSNR(ntf,R,amp,f0,nle...
• simulateSNR(arg1,osr,amp,f0,n...
• sinc_decimate(x,m,r)
• stuffABCD(a,g,b,c,form)
• synthesizeChebyshevNTF(order,... ntf = synthesizeChebyshevNTF(order=3,OSR=64,opt,H_inf=1.5,f0=0)
• synthesizeNTF(order,osr,opt,H...
• synthesizeNTF0(order,OSR,opt,... Determine the zeros.
• synthesizeNTF1(order,osr,opt,... Determine the zeros.
• synthesizeQNTF(order,OSR,f0,N...
• thermometer(x,m)
• un=uvar(u,N);
• undbp(x)
• undbv(x)
• v=undbm(p,z)
• y=dbm(v,R)
• y=dbp(x)
• y=dbv(x)
• y=leftof(p,a,b) function y=leftof(p,a,b)
• y=nabsH(w,H) nabsH computes the negative of the absolute value of H
• y=sgn(x)
• yRange(1):dy:yRange(2); s...
• zinc(f,m,n) mag = zinc(f,m=64,n=1) Calculate the magnitude response
• Contents.m
• dsdemo1.m
• dsdemo2.m
• dsdemo3.m
• dsdemo5.m
• dsdemo6.m
• dsdemo7.m
• dsdemo8.m
• dsistest.m
• View all files