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Sample matrix inversion

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308: 150: 203: 366: 177: 331: 91: 72: 52: 215: 444: 425: 96: 387: 449: 379: 334: 32: 417: 182: 421: 368:, and the inverse of the estimates matrix is then used for finding estimated optimal weights. 409: 396: 344: 155: 28: 338: 316: 76: 57: 37: 438: 410: 303:{\displaystyle {\hat {R}}_{X}={\frac {1}{K}}\sum \limits _{k=1}^{K}X_{k}X_{k}^{H},} 205:
correlation matrix of the array signals, may be obtained by means of a simple
206: 24: 400: 337:. The expression of the theoretically optimal weights requires the 378:
Widrow, B.; Mantey, P. E.; Griffiths, L. J.; Goode, B. B. (1967).
347: 319: 218: 185: 158: 99: 79: 60: 40: 360: 325: 302: 197: 171: 144: 85: 66: 46: 8: 352: 346: 318: 291: 286: 276: 266: 255: 241: 232: 221: 220: 217: 184: 163: 157: 136: 117: 104: 98: 78: 59: 39: 145:{\displaystyle X_{1},X_{2},\dots ,X_{K}} 7: 27:that estimates weights of an array ( 252: 14: 226: 1: 466: 445:Covariance and correlation 416:. Prentice Hall. pp.  380:"Adaptive antenna systems" 152:, an unbiased estimate of 198:{\displaystyle N\times N} 54:with its estimate. Using 388:Proceedings of the IEEE 21:direct matrix inversion 17:Sample matrix inversion 412:Adaptive Filter Theory 401:10.1109/proc.1967.6092 362: 327: 304: 271: 199: 173: 146: 87: 68: 48: 363: 361:{\displaystyle R_{X}} 328: 305: 251: 200: 174: 172:{\displaystyle R_{X}} 147: 93:-dimensional samples 88: 69: 49: 345: 317: 216: 183: 156: 97: 77: 58: 38: 408:Haykin, S. (2002). 335:conjugate transpose 296: 31:) by replacing the 358: 323: 300: 282: 195: 169: 142: 83: 64: 44: 33:correlation matrix 395:(12): 2143–2159. 326:{\displaystyle H} 249: 229: 86:{\displaystyle N} 67:{\displaystyle K} 47:{\displaystyle R} 457: 431: 415: 404: 384: 367: 365: 364: 359: 357: 356: 332: 330: 329: 324: 309: 307: 306: 301: 295: 290: 281: 280: 270: 265: 250: 242: 237: 236: 231: 230: 222: 204: 202: 201: 196: 178: 176: 175: 170: 168: 167: 151: 149: 148: 143: 141: 140: 122: 121: 109: 108: 92: 90: 89: 84: 73: 71: 70: 65: 53: 51: 50: 45: 465: 464: 460: 459: 458: 456: 455: 454: 435: 434: 428: 407: 382: 377: 374: 348: 343: 342: 315: 314: 272: 219: 214: 213: 181: 180: 159: 154: 153: 132: 113: 100: 95: 94: 75: 74: 56: 55: 36: 35: 29:adaptive filter 12: 11: 5: 463: 461: 453: 452: 447: 437: 436: 433: 432: 426: 405: 373: 370: 355: 351: 322: 311: 310: 299: 294: 289: 285: 279: 275: 269: 264: 261: 258: 254: 248: 245: 240: 235: 228: 225: 194: 191: 188: 166: 162: 139: 135: 131: 128: 125: 120: 116: 112: 107: 103: 82: 63: 43: 13: 10: 9: 6: 4: 3: 2: 462: 451: 450:Filter theory 448: 446: 443: 442: 440: 429: 427:0-13-048434-2 423: 419: 414: 413: 406: 402: 398: 394: 390: 389: 381: 376: 375: 371: 369: 353: 349: 340: 336: 320: 297: 292: 287: 283: 277: 273: 267: 262: 259: 256: 246: 243: 238: 233: 223: 212: 211: 210: 208: 192: 189: 186: 164: 160: 137: 133: 129: 126: 123: 118: 114: 110: 105: 101: 80: 61: 41: 34: 30: 26: 22: 18: 411: 392: 386: 312: 20: 16: 15: 439:Categories 372:References 253:∑ 227:^ 207:averaging 190:× 127:… 25:algorithm 209:scheme: 23:) is an 339:inverse 333:is the 424:  420:–168. 313:where 179:, the 383:(PDF) 422:ISBN 19:(or 418:165 397:doi 341:of 441:: 393:55 391:. 385:. 430:. 403:. 399:: 354:X 350:R 321:H 298:, 293:H 288:k 284:X 278:k 274:X 268:K 263:1 260:= 257:k 247:K 244:1 239:= 234:X 224:R 193:N 187:N 165:X 161:R 138:K 134:X 130:, 124:, 119:2 115:X 111:, 106:1 102:X 81:N 62:K 42:R

Index

algorithm
adaptive filter
correlation matrix
averaging
conjugate transpose
inverse
"Adaptive antenna systems"
Proceedings of the IEEE
doi
10.1109/proc.1967.6092
Adaptive Filter Theory
165
ISBN
0-13-048434-2
Categories
Covariance and correlation
Filter theory

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