bs1750.cof

包含AM调制

//bs1750.cof IIR bandstop coefficient file, centered at 1,750 Hz

#define stages 5             	//number of 2nd-order stages

int a[stages][3]=       {    	//numerator coefficients    
{27940, -10910, 27940},		//a10, a11, a12 for 1st stage
{32768, -11841, 32768},		//a20, a21, a22 for 2nd stage
{32768, -13744, 32768},		//a30, a31, a32 for 3rd stage
{32768, -11338, 32768},		//a40, a41, a42 for 4th stage
{32768, -14239, 32768}  };

int b[stages][2]=       {    	//*denominator coefficients    
{-11417, 25710},		//b11, b12 for 1st stage
{-9204, 31581},			//b21, b22 for 2nd stage
{-15860, 31605},		//b31, b32 for 3rd stage
{-10221, 32581},		//b41, b42 for 4th stage
{-15258, 32584}         };	//b51, b52 for 5th stage