DSP Lab 2

6th-Semester-Spring-2024/DSP/Labs/Lab-02/lab-02-2.py

@@ -3,12 +3,35 @@ import matplotlib.pyplot as plt
 
 PI = np.pi
 
+f_s1 = 1
+f_s2 = 2.5
+f_s3 = 3
+f_s4 = PI
 
-fs = 20000
-t = np.arange(0, 1, 1/fs)
+t1 = np.arange(0,40,1/f_s1)
+t2 = np.arange(0,40,1/f_s2)
+t3 = np.arange(0,40,1/f_s3)
+t4 = np.arange(0,40,1/f_s4)
 
-x = np.cos(2*PI*t/7)
+x1 = np.cos(2*PI*t1/7)
+x2 = np.cos(2*PI*t2/7)
+x3 = np.cos(2*PI*t3/7)
+x4 = np.cos(2*PI*t4/7)
 
-plt.plot(np.arange(0,fs), abs(np.fft.fft(s)))
+plt.subplot(2,2,1)
+plt.stem(t1,x1)
+plt.title("1[Hz] Sampling")
+
+plt.subplot(2,2,2)
+plt.stem(t2,x2)
+plt.title("2.5[Hz] Sampling")
+
+plt.subplot(2,2,3)
+plt.stem(t3,x3)
+plt.title("3[Hz] Sampling")
+
+plt.subplot(2,2,4)
+plt.stem(t4,x4) 
+plt.title("$\pi$[Hz] Sampling")
 
 plt.show()