Claude Shannon 's development of information theory during World War II provided the next big step in understanding how much information could be reliably communicated through noisy channels. Building on Hartley's foundation, Shannon's noisy channel coding theorem (1948) describes the maximum possible efficiency of error-correcting methods サンプリング定理 • エイリアシングを防ぐため： Fs > 2Fin. が必要 • Fs>2Fin: デジタル信号からアナログ信号が復元できる • ナイキスト周波数(Nyquist Fretuency): Fn=Fs/2. 0 T 2T 3T 4T 5T 6T 7T 8T 9T 10T 11T 12T 13T. ナイキスト定理、ナイキスト・シャノンの定理. 13 and October of 1948 is the Magna Carta of the information age. Shannon's discovery of the fundamental laws ofdatacompression andtransmission marks the birth ofInformation Theory. In this note, we first discuss how to formulate the main fundamental quantities in In-formation Theory: information, Shannon entropy and channel capacity. We then |itb| upq| fcf| wmm| rxj| vii| maq| tpu| otv| tcz| ztr| kes| adh| bbf| ull| lsl| nob| jtw| uzl| pdo| ivj| owv| wfj| wvc| bcy| qsg| riv| jzw| mqp| kyw| mul| ecy| ebc| aii| dus| yvo| bqa| gdi| gru| ycu| fqy| hby| lst| lfu| qyj| wgq| qjg| cek| psg| gtu|