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| author | Philipp Le <philipp-le-prviat@freenet.de> | 2021-05-04 00:49:33 +0200 |
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| committer | Philipp Le <philipp-le-prviat@freenet.de> | 2021-05-04 00:49:33 +0200 |
| commit | 19eceedd4943c1b8e3bb079d10983d3fc0c14250 (patch) | |
| tree | f6297aa1dd8d3b1609a787d4ef9cf3d252dfd4c1 /chapter05 | |
| parent | 0fd30ff9113ef34d769ff0728e9be9cb9dad0c4f (diff) | |
| download | dcs-lecture-notes-19eceedd4943c1b8e3bb079d10983d3fc0c14250.zip dcs-lecture-notes-19eceedd4943c1b8e3bb079d10983d3fc0c14250.tar.gz dcs-lecture-notes-19eceedd4943c1b8e3bb079d10983d3fc0c14250.tar.bz2 | |
Typo fixes
Diffstat (limited to 'chapter05')
| -rw-r--r-- | chapter05/content_ch05.tex | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/chapter05/content_ch05.tex b/chapter05/content_ch05.tex index f598e65..033246e 100644 --- a/chapter05/content_ch05.tex +++ b/chapter05/content_ch05.tex @@ -87,7 +87,7 @@ The \index{amplitude modulation} \textbf{\acf{AM}} is the alteration of the carr The carrier is a mono-chromatic signal: \begin{equation} - x_C(t) = \hat{X}_C \cdot \cos\left(2\pi f_C + \varphi_C\right) + x_C(t) = \hat{X}_C \cdot \cos\left(2\pi f_C t + \varphi_C\right) \end{equation} where \begin{itemize} @@ -1063,10 +1063,14 @@ So, the input signal's spectrum consists of a positive and a negative part: The frequencies $\omega_{o,1}$ and $\omega_{o,2}$ are called \index{mirror frequencies} \textbf{mirror frequencies}. \end{definition} +x + \begin{attention} Because of the mirror frequency issue, a filter (\ac{LPF}, \ac{BPF}, etc.) must follow or precede a mixer to eliminate the unwanted mirror frequency. \end{attention} +x + \begin{figure}[H] \subfloat[Input and \acs{LO} signals in the frequency-domain] { |