An Improved Gyrocompass Alignment Method for Large Azimuth Misalignment

<div>Block diagram of <svg height="14.5237pt" id="M118" style="vertical-align:-3.8522pt" version="1.1" viewbox="-0.0498162 -10.6715 14.8195 14.5237" width="14.8195pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M650 301C650 412 603 457 559 457C537 457 515 448 510 445L501 425C524 404 558 366 558 267C558 143 519 66 455 66C427 66 410 101 410 139C410 189 445 311 459 351L452 360L321 348C315 300 304 245 292 191C274 113 248 78 211 78C182 78 159 101 159 164C159 283 206 366 279 426L257 464C122 404 22 299 22 154C22 48 72 -12 140 -12C210 -12 262 37 297 88C308 19 340 -12 397 -12C435 -12 475 5 513 31C597 88 650 201 650 301Z" id="g14-246"></path><glyph.data ascent="3452" descent="-2858" horiz-adv-x="672" vert-adv-y="672"></glyph.data></g><g transform="matrix(.0091,0,0,-0.0091,8.769,-5.872)"><path d="M573 302C573 402 527 451 414 451C386 451 343 446 313 437L330 513L320 522C295 508 261 484 243 463L230 415C194 400 159 383 126 359L131 330C159 344 187 357 222 368L109 -147C96 -204 80 -214 18 -223L13 -255L256 -244L259 -212L236 -210C184 -205 180 -195 191 -141L219 -1C240 -10 268 -12 284 -12C352 4 431 48 484 104C543 166 573 240 573 302ZM481 290C481 165 381 37 305 37C280 37 249 56 235 71L302 395C328 399 353 402 372 402C427 402 481 378 481 290Z" id="g50-113"></path><glyph.data ascent="3443" descent="-2856" horiz-adv-x="597" vert-adv-y="597"></glyph.data></g><g transform="matrix(.0091,0,0,-0.0091,8.769,3.693)"><path d="M387 400C387 425 348 451 303 451C247 451 176 414 132 376C69 322 24 228 24 148C24 43 74 -12 147 -12C211 -12 301 33 363 103L346 128C319 99 249 51 193 51C148 51 112 84 112 165C112 230 130 287 154 330C170 359 199 400 243 400C277 400 304 383 326 354C333 345 343 343 354 348C378 360 387 382 387 400Z" id="g50-100"></path><glyph.data ascent="3443" descent="-2856" horiz-adv-x="411" vert-adv-y="411"></glyph.data></g></svg> and azimuth estimation functions.</div>

Mathematical Problems in Engineering

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Figure 3

Figure 3: An Improved Gyrocompass Alignment Method for Large Azimuth Misalignment 