113
Mhz
Antenna
A
113
Mhz
Antenna
B
113
Mhz
Total
power measurement
Local Oscillator
(102.3 MHz)
Sampling
clock
Sampling
clock
Walsh A
Walsh B
Delay
value A
Delay
value B
Signal
distribution on a multiplexed backplane
Attenuators
0-45 dB
Attenuators
0-45 dB
Bandpass
Filter
(700 KHz)
Bandpass
Filter
(700 KHz)
Digitizer.
Digitizer.
Walsh
demod.
Delay
Walsh
demod.
Delay
Power
detect..
Power
detect..
Logarithmic
Amplifier
(70
dB range)
A/D
Look
Up
Table
Reg.
Acquisit.
Acquisit.
To
data acquisition
1
bit
correlator
(sine,
cosine)
1
bit
correlator
(sine,
cosine)
1
bit
correlator
(sine,
cosine)
Nançay Radioheliograph: receiver
diagram
Correlator
array
for 648
baselines
IF 10.7
MHz