巴特沃斯濾波器c語言-資料下載頁
2025-06-26 07:25本頁面
【正文】 。Res[Count_2]+=Res_Save[Count_21]。240. //printf(Res[%d]%lf\n,Count_2,Res[Count_2])。241. }242. 243. else244. {245. Res[Count_2]+=Res_Save[Count_2]+Res_Save[Count_21]。246. //printf(Res[%d]%lf\n,Count_2,Res[Count_2])。247. }248. }249. 250. //printf(Res:)。251. for(Count_Z=0。Count_Z=N。Count_Z++)252. {253. Res_Save[Count_Z]=Res[Count_Z]254. Res[Count_Z]=0。255. //printf([%d]%lf,Count_Z,Res_Save[Count_Z])。256. }257. //printf(\n)。258. }259. 260. 261. //printf(Res:)。262. for(Count_Z=0。Count_Z=N。Count_Z++)263. {264. *(az+Count_Z)+=pow(2,NCount)*(*(as+Count))*Res_Save[Count_Z]。265. *(bz+Count_Z)+=(*(bs+Count))*Res_Save[Count_Z]。266. //printf(%lf,*(bz+Count_Z))。267. }268. //printf(\n)。269. 270. }271. 272. 273. 274. for(Count_Z=N。Count_Z=0。Count_Z)275. {276. *(bz+Count_Z)=(*(bz+Count_Z))/(*(az+0))。277. *(az+Count_Z)=(*(az+Count_Z))/(*(az+0))。278. }279. 280. 281. //display//282. printf(bz=[)。283. for(Count_Z=0。Count_Z=NCount_Z++)284. {285. printf(%lf,*(bz+Count_Z))。286. }287. printf(]\n)。288. printf(az=[)。289. for(Count_Z=0。Count_Z=NCount_Z++)290. {291. printf(%lf,*(az+Count_Z))。292. }293. printf(]\n)。294. printf(\n)。295. 296. 297. 298. return(int)1。299. }300. 301. 302. 303. 304. 305. intmain(void)306. {307. intcount。308. 309. structDESIGN_SPECIFICATIONIIR_Filter。310. 311. =(double)(pi/2)。//[red]312. =(double)((pi*3)/4)。//[red]313. =30。//[dB]314. 315. intN。316. 317. =2*tan(()/2)。//[red/sec]318. =2*tan(()/2)。//[red/sec]319. 320. N=Buttord(,321. ,322. )。323. printf(N:%d\n,N)。324. printf(\n)。325. 326. doubleas[N+1],bs[N+1]。327. Butter(N,328. ,329. as,330. bs)。331. 332. doubleaz[N+1],bz[N+1]。333. 334. Bilinear(N,335. as,bs,336. az,bz)。337. 338. printf(Finish\n)。339. return(int)0。340. } 使用上述程序，gcc編譯通過，執(zhí)行結(jié)果如下。 其頻率響應(yīng)如下所示。
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