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Constant envelope

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22: 129:. Some examples of constant envelope modulations are as FSK, GFSK, MSK, GMSK and Feher's IJF - All constant envelope modulations allow power amplifiers to operate at or near saturation levels. Although, the 58: 40: 110:
until they reach a steady state. Constant envelope needs to occur for the system to be stable, where there is the least amount of
79: 220: 103: 91: 196:"Patent EP2284996A1 - Closed loop power control of non-constant envelope waveforms using sample/hold" 145: 136:
of a non-constant amplitude envelope is always higher than that of a constant envelope modulation.
75: 251: 150: 122: 195: 130: 87: 245: 99: 106:, occurs after a system becomes settled. To be more specific, control systems are 133: 126: 118: 95: 107: 83: 117:
Feedback is used to create a feedback signal to control gain, reduce
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provides insufficient context for those unfamiliar with the subject
111: 170: 15: 36: 114:and feedback gain has rendered the system steady. 82:in a specific system. This happens when negative 8: 171:"Advantages of Constant Envelope Modulation" 59:Learn how and when to remove this message 162: 221:"8.5: Nonconstant Envelope Modulation" 41:providing more context for the reader 7: 121:, control output voltage, improve 14: 125:or create instability, as in an 20: 1: 268: 104:electrical engineering 98:reaches steady state. 92:automatic gain control 146:Constant-weight code 90:, such as in radio 76:sinusoidal waveform 74:is achieved when a 37:improve the article 72:Constant envelope 69: 68: 61: 259: 236: 235: 233: 231: 217: 211: 210: 208: 206: 192: 186: 185: 183: 181: 167: 151:Envelope (waves) 102:, as defined in 64: 57: 53: 50: 44: 24: 23: 16: 267: 266: 262: 261: 260: 258: 257: 256: 242: 241: 240: 239: 229: 227: 219: 218: 214: 204: 202: 194: 193: 189: 179: 177: 169: 168: 164: 159: 142: 65: 54: 48: 45: 34: 25: 21: 12: 11: 5: 265: 263: 255: 254: 244: 243: 238: 237: 225:globalspec.com 212: 187: 161: 160: 158: 155: 154: 153: 148: 141: 138: 131:power spectrum 88:control system 67: 66: 28: 26: 19: 13: 10: 9: 6: 4: 3: 2: 264: 253: 250: 249: 247: 226: 222: 216: 213: 201: 197: 191: 188: 176: 172: 166: 163: 156: 152: 149: 147: 144: 143: 139: 137: 135: 132: 128: 124: 120: 115: 113: 109: 105: 101: 97: 93: 89: 85: 81: 77: 73: 63: 60: 52: 42: 38: 32: 29:This article 27: 18: 17: 228:. Retrieved 224: 215: 203:. Retrieved 199: 190: 178:. Retrieved 174: 165: 116: 100:Steady state 71: 70: 55: 46: 35:Please help 30: 175:sss-mag.com 94:or when an 80:equilibrium 157:References 134:efficiency 127:oscillator 119:distortion 49:April 2016 252:Waveforms 200:google.ch 123:stability 96:amplifier 246:Category 140:See also 108:unstable 84:feedback 78:reaches 230:5 April 205:5 April 180:5 April 112:noise 86:in a 232:2016 207:2016 182:2016 39:by 248:: 223:. 198:. 173:. 234:. 209:. 184:. 62:) 56:( 51:) 47:( 43:. 33:.

Index

improve the article
providing more context for the reader
Learn how and when to remove this message
sinusoidal waveform
equilibrium
feedback
control system
automatic gain control
amplifier
Steady state
electrical engineering
unstable
noise
distortion
stability
oscillator
power spectrum
efficiency
Constant-weight code
Envelope (waves)
"Advantages of Constant Envelope Modulation"
"Patent EP2284996A1 - Closed loop power control of non-constant envelope waveforms using sample/hold"
"8.5: Nonconstant Envelope Modulation"
Category
Waveforms

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