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Lewis Kelsey
  • Member for 3 years, 9 months
  • Last seen this week
  • United Kingdom
2 votes
3 answers
919 views

If a square wave is a sum of odd harmonic impulses, why is it continuous in the frequency domain?

2 votes
4 answers
664 views

Are capacity and spectral efficiency identical for a dicrete-time digital signal?

1 vote
1 answer
1k views

How is signal to noise ratio actually measured by receiver equipment?

1 vote
1 answer
98 views

Why do I keep seeing this equation for $E_b/N_0$

1 vote
2 answers
81 views

Isn't the rect pulse filter implicit at the transmitter?

1 vote
1 answer
527 views

Visualising OFDM subcarriers in the frequency domain

1 vote
0 answers
85 views

Why does carrier frequency offset (CFO) cause carrier phase error (CPE)?

1 vote
2 answers
164 views

How does companding compress dynamic range?

1 vote
3 answers
144 views

How are the reflections in a quarter wavelength transformer dealt with in signal processing?

0 votes
0 answers
21 views

IDFT of voltage frequency response of input resistance of antenna / transmission line is non causal?

0 votes
0 answers
33 views

At what bandwidth does BPSK become totally unreliable? [duplicate]

0 votes
1 answer
57 views

Why do we need to 'estimate' the PSD

0 votes
0 answers
125 views

Why are some Shannon's limit plots exponential rather than logarithmic?

0 votes
1 answer
340 views

Ambiguity in the IFFT process in OFDM

0 votes
0 answers
58 views

Why is the noise on an eye diagram not in the centre i.e. at 0?

0 votes
2 answers
70 views

What specifically does PCM refer to?

0 votes
1 answer
175 views

Why does fine CFO cause rotation of the constellation?

0 votes
1 answer
31 views

Mathematical relationship between phase modulated (PM) signal and the complex phase/magnitude of the frequency component at the carrier frequency?