Laterizio

demodulatore ssb

uC

http://www.microchip.com/wwwproducts/Devices.aspx?dDocName=en532298 dsPIC33FJ128GP802

• RAM: 16K
• Flash: 128K
• Timers: 5
• UART: 2
• primitive DSP
• ADC >=12bit
• DAC >=12bit

Mappa pin

Pin	Funzione	Nome	porta sul uC
1	MCLR		MCLR
2	I in		AN0/VREF+/CN2/RA0
3	Q in		AN1/VREF-/CN3/RA1
4	Dati ICSP/GPIO2/PWM0/ANALOG0		PGED1/AN2/C2IN-/RP0(1)/CN4/RB0
5	Clock ICSP/GPIO3/PWM1/ANALOG1		PGEC1/ AN3/C2IN+/RP1(1)/CN5/RB1
6			AN4/C1IN-/RP2/CN6/RB2
7			AN5/C1IN+/RP3/CN7/RB3
8	V -		VSS
9			OSC1/CLKI/CN30/RA2
10			OSC2/CLKO/CN29/PMA0/RA3
11			SOSCI/RP4(1)/CN1/PMBE/RB4
12			SOSCO/T1CK/CN0/PMA1/RA4
13	V +		VDD
14			PGED3/ASDA1/RP5 /CN27/PMD7/RB5
15			PGEC3/ASCL1/RP6(1)/CN24/PMD6/RB6
16			INT0/RP7(1)/CN23/PMD5/RB7
17			TCK/SCL1/RP8(1)/CN22/PMD4/RB8
18			TDO/SDA1/RP9(1)/CN21/PMD3/RB9
19	V -		VSS
20	10 uF tantalio verso VSS		VCAP
21	PTT In		PGED2/TDI/RP10(1)/CN16/PMD2/RB10
22			PGEC2/TMS/RP11(1)/CN15/PMD1/RB11
23	Q out +		AN12/DAC1RP/RP12(1)/CN14/PMD0/RB12
24	Q out -		AN11/DAC1RN/RP13(1)/CN13/PMRD/RB13
25	I out +		AN10/DAC1LP/RTCC/RP14(1)/CN12/PMWR/RB14
26	I out -		AN9/DAC1LN/RP15(1)/CN11/PMCS1/RB15
27	V - analogico		AVSS
28	V + analogico		AVDD

Letture

Phasing method:

• http://www.ece.umd.edu/~tretter/commlab/c6713slides/ch7.pdf
• http://www-inst.eecs.berkeley.edu/~ee120/fa99/notes/notes15.pdf
• http://www.katjaas.nl/hilbert/hilbert.html
• https://www.ece.uvic.ca/~elec350/lab_manual/data/SSB_theory.pdf
• http://www.dg5mk.de/pages/artikel/content-in-english-language/fft-ssb-modulation-and-demodulation---how-it-works.php
• http://tlfabian.blogspot.it/2013/01/implementing-hilbert-90-degree-shift.html
• http://rheslip.blogspot.it/2014/04/teensy-sdr-implementing-image.html
• https://it.mathworks.com/help/signal/examples/single-sideband-modulation-via-the-hilbert-transform.html
• http://www.moetronix.com/dspic/
• http://ae6ty.com/Papers_files/SDR-QrpQuarterly-Part-3.pdf
• http://forums.parallax.com/discussion/132977/hilbert-transform-prop-dsp
• http://www.dsprelated.com/showarticle/176.php

Weaver method:

• http://dp.nonoo.hu/projects/ham-dsp-tutorial/11-ssb-weaver/
• http://home.comcast.net/~w1qg/fpga_dsp1.pdf
• http://www.radioexperimenter.us/re-09-1993/a-weaver-method-ssb-modulator-using-dsp.html