在MATLAB中使用高斯或者洛伦兹函数拟合几个吸收带有叠加的吸收光谱
有谁能在MATLAB中使用高斯或者洛伦兹函数拟合几个吸收带有叠加的吸收光谱？我想知道每个峰的峰位等信息。X轴：Wavenumber =
13157.89474 13175.23057 13192.61214 13210.03963 13227.51323 13245.03311 13262.59947 13280.21248 13297.87234 13315.57923 13333.33333 13351.13485 13368.98396 13386.88086 13404.82574 13422.81879 13440.86022 13458.9502 13477.08895 13495.27665 13513.51351 13531.79973 13550.1355 13568.52103 13586.95652 13605.44218 13623.9782 13642.5648 13661.20219 13679.89056 13698.63014 13717.42112 13736.26374 13755.15818 13774.10468 13793.10345 13812.1547 13831.25864 13850.41551 13869.62552 13888.88889 13908.20584 13927.5766 13947.00139 13966.48045 13986.01399 14005.60224 14025.24544 14044.94382 14064.69761 14084.50704 14104.37236 14124.29379 14144.27157 14164.30595 14184.39716 14204.54545 14224.75107 14245.01425 14265.33524 14285.71429 14306.15165 14326.64756 14347.2023 14367.81609 14388.48921 14409.2219 14430.01443 14450.86705 14471.78003 14492.75362 14513.7881 14534.88372 14556.04076 14577.25948 14598.54015 14619.88304 14641.28843 14662.7566 14684.28781 14705.88235 14727.5405 14749.26254 14771.04874 14792.89941 14814.81481 14836.79525 14858.84101 14880.95238 14903.12966 14925.37313 14947.68311 14970.05988 14992.50375 15015.01502 15037.59398 15060.24096 15082.95626 15105.74018 15128.59304 15151.51515 15174.50683 15197.56839 15220.70015 15243.90244 15267.17557 15290.51988 15313.93568 15337.42331 15360.9831 15384.61538 15408.32049 15432.09877 15455.95054 15479.87616 15503.87597 15527.95031 15552.09953 15576.32399 15600.62402 15625 15649.45227 15673.98119 15698.58713 15723.27044 15748.0315 15772.87066 15797.78831 15822.78481 15847.86054 15873.01587 15898.25119 15923.56688 15948.96332 15974.44089 16000.00000 16025.64103 16051.36437 16077.17042 16103.05958 16129.03226 16155.08885 16181.22977 16207.45543 16233.76623 16260.1626 16286.64495 16313.2137 16339.86928 16366.61211 16393.44262 16420.36125 16447.36842 16474.46458 16501.65017 16528.92562 16556.29139 16583.74793 16611.29568 16638.93511 16666.66667 16694.49082 16722.40803 16750.41876 16778.52349 16806.72269 16835.01684 16863.40641 16891.89189 16920.47377 16949.15254 16977.92869 17006.80272 17035.77513 17064.84642 17094.01709 17123.28767 17152.65866 17182.13058 17211.70396 17241.37931 17271.15717 17301.03806 17331.02253 17361.11111 17391.30435 17421.60279 17452.00698 17482.51748 17513.13485 17543.85965 17574.69244 17605.6338 17636.6843 17667.84452 17699.11504 17730.49645 17761.98934 17793.59431 17825.31194 17857.14286 17889.08766 17921.14695 17953.32136 17985.61151 18018.01802 18050.54152 18083.18264 18115.94203 18148.82033 18181.81818 18214.93625 18248.17518 18281.53565 18315.01832 18348.62385 18382.35294 18416.20626 18450.1845 18484.28835 18518.51852 18552.8757 18587.36059 18621.97393 18656.71642 18691.58879 18726.59176
Y轴： Absorbance=
1.32542E-4 2.2547E-5 9.88697E-6 3.94551E-4 8.7653E-4 0.00106 0.00153 0.00271 0.00378 0.00525 0.00711 0.00867 0.01023 0.01149 0.01345 0.0157 0.01735 0.01919 0.02084 0.02258 0.02391 0.02525 0.02638 0.02711 0.02764 0.02806 0.02938 0.0303 0.03071 0.03122 0.03163 0.03183 0.03164 0.03124 0.03083 0.03012 0.02891 0.0273 0.02549 0.02367 0.02194 0.02042 0.01869 0.01746 0.01642 0.01539 0.01484 0.0148 0.01525 0.0161 0.01745 0.01909 0.02153 0.02417 0.0266 0.02943 0.03205 0.03448 0.0369 0.03881 0.04003 0.04093 0.04194 0.04224 0.04214 0.04164 0.04063 0.04012 0.0401 0.04038 0.04146 0.04344 0.04621 0.05018 0.05494 0.0608 0.06776 0.07571 0.08496 0.0953 0.10605 0.11718 0.12852 0.13965 0.15008 0.1597 0.16832 0.17533 0.18115 0.18585 0.18946 0.19226 0.19435 0.19625 0.19864 0.20142 0.2053 0.20988 0.21575 0.22322 0.23178 0.24124 0.2516 0.26275 0.2735 0.28284 0.29018 0.29482 0.29655 0.29488 0.29 0.28182 0.27064 0.25675 0.24085 0.22395 0.20595 0.18834 0.17083 0.15292 0.1356 0.11917 0.10424 0.09101 0.07877 0.06763 0.05698 0.04753 0.03957 0.03271 0.02665 0.02138 0.0172 0.01352 0.01044 0.00785 0.00566 0.00406 0.00365 0.00388 0.00403 0.00557 0.00811 0.01085 0.01418 0.01771 0.02193 0.02635 0.03156 0.03777 0.04398 0.05098 0.05887 0.06796 0.07795 0.08943 0.10321 0.11798 0.13405 0.15141 0.16987 0.18962 0.20897 0.22871 0.24775 0.26538 0.28231 0.29784 0.31285 0.32707 0.34068 0.35348 0.36658 0.37997 0.39406 0.41044 0.42802 0.44729 0.47046 0.49652 0.52598 0.55723 0.58828 0.61942 0.64945 0.67518 0.69401 0.70393 0.70384 0.69495 0.67595 0.64724 0.61174 0.57142 0.5291 0.48597 0.44274 0.4017 0.36336 0.32861 0.29756 0.26899 0.24333 0.21985 0.19767 0.17659 0.1564 0.1367 0.1185 0.10219 0.08677 0.07315 0.06092 0.05088 0.04213 0.03427 0.028 0.02234 0.01727 0.01309 0.00982 0.00714 0.00476 0.00338 0.00229 0.0017 0.00191
根据实验，这个吸收带应该是由6-7个高斯或者洛伦兹峰叠加而成。我试过用简单的高斯工具箱来做，但拟合的不好。我是刚刚开始学习，请帮助。
[ 本帖最后由 ChaChing 于 2009-10-12 16:42 编辑 ]
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