% SPDX-License-Identifier: CC-BY-SA-4.0
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% Copyright (c) 2020 Philipp Le
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% Except where otherwise noted, this work is licensed under a
% Creative Commons Attribution-ShareAlike 4.0 License.
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\chapter{Digital Signal Processing and Spread Spectrum}

\begin{refsection}

\todo{Implementation in CPU or ASIC/PLD}

\section{Digital Filters}

\todo{Digital Systems}

\todo{IIR}

\todo{Stability of IIR Filters}

\todo{FIR}

\section{Resampling}

\todo{Downsampling, Decimation}

\todo{Upsampling, Interpolation}

\todo{Processing Gain}

\todo{CIC filter}

\section{Digital Mixer}

\section{Fast Fourier Transform}

\todo{FFT}

\todo{IFFT}

\section{Spread Spectrum}

\todo{Purpose: Noise immunity}

\todo{Purpose: Immunity against narrowband disturbances}

\todo{Purpose: Coexistence with other services}

\subsection{Direct-Sequence Spread Spectrum}

\todo{Processing Gain}

\subsection{Frequency-Hopping Spread Spectrum}

\subsection{Time-Hopping Spread Spectrum}

\section{Multi-carrier Modulation}

\todo{OFDM}

\phantomsection
\addcontentsline{toc}{section}{References}
\printbibliography[heading=subbibliography]
\end{refsection}