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1、Motorola B11155 1 DSP56F805ABS 510640 DSP56F805ABSABSAnti-Braking System DSP56F805 DSP56F805ABS ABSAnti-Braking System DSP56F805ABS ABSAnti-Braking System ABS FxFy N xy 0.80.90.10.2 S RV =RV 1 N F N F y y x x V R V VV S1 Motorola B11155 2 1 )(GN 2 1 2211 Lg h dt dV L l FFFF dt dv m g rblbrblb 1 x x
2、15 20s100 NJrV MKFb Fb1lFb2lFb1rFb2r V0mGcl1l2LBhg )(sFF rFKprFM dt d JM b bbr Motorola B11155 3 V ABSd/dts s ABSABSABS ABS RS232PC ABS RS232ABS 1. DSP56F805 2. AD693 3. 4 LM339 4. DSP56F805 dt dt dV VV BFFFFBFFFFM Lg h dt dV L l t rblbrblbrbrblblbs g 0 0 22112121 1 2 )()()()( )(GN Motorola B11155 4
3、 5. 6. T630 1. 2. 3. 4. 5. 6. 7. DSP56F805 2 2 DSP56F805ADCA/D A/DDSP DSPI/O AD693AD693V/I 0100mV 420mA0-20mA128mA LM339LM339 TTLCMOS 3 Motorola B11155 5 / 74HC1658 ATMELAT89C51 MAX232 T630 265MHz 12V100M4mA28X12X10mm T631 6V1mA265MHz31X23X10mm T63044T1C11 C12 L1W1265MHzL1L1 1.5mm24mm()X9mm()T1 BE41
4、42SC3355 4 T6315V1ICV1 C7C9L2C9265MHz L2V1V2 IC LM358LM3587 31mmX23CC27mm()X9mm() OUTV1BE415 2SC3355C9ICLM358 1/8W1/16W Motorola B11155 6 5 6 Motorola B11155 7 6 fc fs=32fc fc-1fc+1 2HZ fafc1fbfc1 Motorola B11155 8 wafa2/ fs wbfb2/ fs h(n)Hd(ej)=1 wa=| |= wb Hd(ej)=0 dweeHnh jnwjw dd )( 2 1 )( ) 2 1
5、 ( ) 2 1 (sin) 2 1 (sin )( N n N nw N nw nh bb d h(n) h(n)hd (n) w(n)hd (n) n=0,1,2,N-1 h(n)hd (n) w(n)=0 x(n)h(n) y(n)= x(n)* h(n) FFT 4FFTx1(n) x2(n)h(n)NNDFTX1(n)X2(n)H(n) FFT y1 (n)= x1 (n)* h(n) y2 (n)= x2 (n)* h(n) x1(n)x2(n) x(n)x1(n)+j x2(n) DFTx(n)= X(K)= X1(k)+ X2(k) Y(k)=H(k)X(k) IFFTy(n)
6、x(n)h(n) y(n)=IFFTY(k)= x1(n)+j x2(n)*h(n)x1 (n)* h(n)+j x2 (n)* h(n) y1 (n)= x1 (n)* h(n)Rey(n) y2 (n)= x2 (n)* h(n)=Imy(n) DSP3216x(n)512 DSP Motorola B11155 9 ui ui1 ui2256 h(n)257 h0 ui1ui2h 0512 FFTui1FFT(ui1512) ui2FFT(ui1512)h=FFT(h512) ui1ui1*h ui2ui2*h FFT IFFT(ui1512)IFFT(h512) Motorola B11155 10 01 4 5 0.85628562 80100 50101 60110 20010 81011 51010 61001 21101 1 44444201 . MotorolaDSP56F805ABS 2. GB13594-92 510641 86-020-87113119 86-020-87113119 86-020-87112226 86-020-87110562