Questions tagged [signal]
A signal is a stream of information in the form of a varying quantity. Usually in electronics, signals can be in the form of voltages, currents, or radiated electromagnetic fields.
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How can the noise be reduced in this AM radio receiver circuit?
How can the noise be reduced in this AM radio receiver circuit?
At the signal filtering stage of the receiver, I utilized an input AM signal that should first be amplified by an RF amplifier, ...
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Op-amp signal differentiator producing an incorrect output
I am currently working on creating a circuit that differentiates an incoming signal and outputs the result. I am using the circuit shown below for use as a low-noise counterpart with the same values ...
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Linear AC voltage to DC 5v or 10v PWM conversion
I have a vehicle with generator style speed signal generator and its output is linear from 0 -30VAC. This signal is used by the Dash mounted speedo without any issue. I now have a mandated requirement ...
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How does a noiseless channel of BW B can transmit a maximum of 2B independent informations per second?
The book by B.P. Lathi mentions this excerpt:
If nyquist rate suggests that the sampling rate should be atleast 2B Hz, shouldn’t the transmission rate be a minimum of 2B independent informations per ...
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Rotary Encoder Signal Distortion [closed]
I'm pretty new to oscilloscopes so I apologize in advance. I'm experiencing significant signal distortion on the rotary encoder output from a linear actuator and this is what the oscilloscope is ...
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Test ARINC 429 receiver with generator
I want to send ARINC 429 message to line receiver HI-8588. I use OWON DGE2035 as generator and Hantek 2042 as oscilloscope. CH1 sends original 32 bits message and CH2 sends same message inverted.
Wave ...
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Is it safe to route an audio signal trace underneath power rails (+15V/-15V) in a tight PCB layout?
I'm working on a compact PCB for a preamp circuit using NE5532 op-amps. Due to space constraints, I’m considering routing an audio signal trace on the bottom layer of the PCB, directly underneath the ...
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Uncertainty principles and signal recovery (Donoho and Stark)
I am trying to reconstruct a signal that has missing samples using the methods proved in the title paper. The paper is readily available (https://web.stanford.edu/dept/statistics/cgi-bin/donoho/wp-...
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Balanced Mic Preamp PCB Layout - Close Traces?
I'm designing a PCB for a microphone preamp with a balanced input. The signal is amplified by around +30 dB and then converted to unbalanced at the output.
This is my first time designing a PCB for a ...
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Trouble utilizing intrumentation amplifier
I'm currently designing a signal conditioning circuit for a piezoelectric sensor, and am using an INA849 for the first stage of amplification. Currently, I'm only using a function generator and a ...
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Is it possible to use two (or more) antennas to ensure good transmission/reception?
I'm a junior EE working on an avionics system for a model rocket. I'm trying to implement telemetry. The telemetry should send flight data (IMU, power, etc.) along with GPS location data, to the ...
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What does 'clocked out' mean?
In 7 Series FPGAs Configuration (UG470), Xilinx says,
DOUT is the data output for a serial configuration daisy-chain. DOUT is clocked out on the falling edge of CCLK.
What does it mean by 'clocked ...
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Problem in demodulating PAL signal
I am trying to demodulate an analog video signal of PAL format and encountered a problem in demodulating the color part. So my input data is as follows: I have 2500 spectra, spectrum width 200 MHz, my ...
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Measuring output power of amplifier
I want to measure the output power of signal from amplifier because I want to verify the signal amplification and distortion. How can I do so? For information, it is a 2.4 GHz sunhans amplifier. I am ...
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Why does this phase shifting network attenuate the input signal?
Below shows the phase shifting network I designed for a FM detector. The goal is to create a 90° phase shift between the input and OUT1 at the centre frequency 10.7MHz. This circuit drives the bottom ...
