Fn=i*Fs/NPT
时间: 2024-01-17 09:38:14 浏览: 38
根据引用\[1\]中的说明,Fn表示第n个谐波的频率,i表示谐波的序号,Fs表示采样频率,NPT表示采样点数。根据公式Fn=i*Fs/NPT,可以计算出第n个谐波的频率。其中,i表示谐波的序号,从1开始递增,Fs表示采样频率,NPT表示采样点数。
#### 引用[.reference_title]
- *1* *2* *3* [基于STM32的FFT频谱分析+波形识别](https://blog.csdn.net/qq_42628795/article/details/95314989)[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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相关问题
import matplotlib.pyplot as pltimport numpy as npt = np.linspace(0, 2*np.pi, 200)x = 16*np.sin(t)**3y = 13*np.cos(t)-5*np.cos(2*t)-2*np.cos(3*t)-np.cos(4*t)plt.plot(x, y, 'r')plt.show()
这是一段Python代码,使用matplotlib和numpy库来绘制心形曲线。其中,使用np.linspace生成0到2π之间的一些点,然后通过数学公式计算出心形曲线的x和y值,并使用plt.plot函数将其画出来。最后使用plt.show函数显示图形。
def on_submit(self): prompt = self.prompt_edit.toPlainText() question = self.question_edit.toPlainText() api_url = "https://api.devbit.cn/ai/api/ai/chat" api_key = "ZXlKMGVYQWlPaUpLVjFRaUxDSmhiR2NpT2lKSVV6STFOaUo5LmV5SjBkQ0k2TkN3aVlYVmtJam9pTlRNeE5XTmpZekV3TlRnME5HSTNNVGcyWmpoa09XRTVOVFppTnpGbU5HWWlMQ0pzZFNJNkltZGhiMmhoYjNkbGJpSXNJbVY0Y0NJNk1UWTROVFUwT0RjNU9Td2lkWElpT2pJc0ltcDBhU0k2SWtGUVNWOVVUMHRGVGw4MU16RTFZMk5qTVRBMU9EUTBZamN4T0RabU9HUTVZVGsxTm1JM01XWTBaaTAwSW4wLjM0WWhudzVpblNRVTZROWpkZ0RxRHlCQk1GM2xmN01HYTZBcXZJMV9ydjA=" headers = { "Authorization": "Bearer "+api_key, "Accept": "application/json" } payload = { "prompt": prompt, "question": question, "cid": self.cid, "stream": False } response = requests.post(api_url, json=payload, headers=headers) if response.status_code == 200: print(response.json()) json_response = response.json() self.cid = str(json_response['data']['cid']) self.json_response_edit.setText(str(json_response['data']['answer'])) else: print("Request failed with error code {reaponse.status_code}") self.json_response_edit.setText(f"请求失败,错误码 {response.status_code}")怎么在点击提交按钮时,根据复选框状态判定cid是否回传?
你可以在`payload`中添加一个`cid`字段,根据复选框的状态来判断是否传入`cid`。假设你的复选框是`self.cid_checkbox`,那么你可以这样修改`on_submit`方法:
```
def on_submit(self):
prompt = self.prompt_edit.toPlainText()
question = self.question_edit.toPlainText()
api_url = "https://api.devbit.cn/ai/api/ai/chat"
api_key = "ZXlKMGVYQWlPaUpLVjFRaUxDSmhiR2NpT2lKSVV6STFOaUo5LmV5SjBkQ0k2TkN3aVlYVmtJam9pTlRNeE5XTmpZekV3TlRnME5HSTNNVGcyWmpoa09XRTVOVFppTnpGbU5HWWlMQ0pzZFNJNkltZGhiMmhoYjNkbGJpSXNJbVY0Y0NJNk1UWTROVFUwT0RjNU9Td2lkWElpT2pJc0ltcDBhU0k2SWtGUVNWOVVUMHRGVGw4MU16RTFZMk5qTVRBMU9EUTBZamN4T0RabU9HUTVZVGsxTm1JM01XWTBaaTAwSW4wLjM0WWhudzVpblNRVTZROWpkZ0RxRHlCQk1GM2xmN01HYTZBcXZJMV9ydjA="
headers = {
"Authorization": "Bearer " + api_key,
"Accept": "application/json"
}
payload = {
"prompt": prompt,
"question": question,
"stream": False
}
# 根据复选框状态判断是否传入cid
if self.cid_checkbox.isChecked():
payload["cid"] = self.cid
response = requests.post(api_url, json=payload, headers=headers)
if response.status_code == 200:
print(response.json())
json_response = response.json()
self.cid = str(json_response['data']['cid'])
self.json_response_edit.setText(str(json_response['data']['answer']))
else:
print(f"Request failed with error code {response.status_code}")
self.json_response_edit.setText(f"请求失败,错误码 {response.status_code}")
```
这样,如果`self.cid_checkbox`被选中,就会在`payload`中传入`cid`;否则不传入`cid`。