geortzel算法
时间: 2023-08-18 09:15:07 浏览: 53
引用\[3\]中提到了Goertzel算法,它是一种用于计算离散傅里叶变换(DFT)系数的算法。该算法可以看作是针对每个频率k的匹配滤波器,用于计算输入信号x(n)在不同频率组件上的滤波器输出X(k)。\[3\]该算法在DTMF信号产生和解码中被广泛应用,其中DTMF信号由8个不同的频率组成,每个频率对应一个K值。通过Goertzel算法可以有效地计算出DFT系数,从而实现对DTMF信号的解码。
#### 引用[.reference_title]
- *1* [【数字信号处理】Goertzl算法详解推导及双音多频(DTMF)信号检测](https://blog.csdn.net/wlwdecs_dn/article/details/130915078)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^control_2,239^v3^insert_chatgpt"}} ] [.reference_item]
- *2* [【信号处理】基于双音多频(DTMF)信号检测含Matlab源码](https://blog.csdn.net/qq_59747472/article/details/125153253)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^control_2,239^v3^insert_chatgpt"}} ] [.reference_item]
- *3* [DTMF信号检测之goertzel算法](https://blog.csdn.net/u010712012/article/details/75947933)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^control_2,239^v3^insert_chatgpt"}} ] [.reference_item]
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