bias n. 1.成見,先入之見,偏執(zhí),偏見 (opp. Impartiality ); 傾向,嗜好;癖 (towards)。 2.(衣服等上面縫的)斜線,斜痕;【無線電】偏,偏壓;偏置。 3.【體育】使球斜進(jìn)的偏力;(球的)歪圓形;不按直線前進(jìn)的傾向;【電學(xué)】偏壓;【統(tǒng)計(jì)學(xué)】?jī)A向統(tǒng)計(jì)值;【生物學(xué)】偏倚。 a racial bias種族偏見。 A strong musical bias 對(duì)音樂的強(qiáng)烈愛好。 Copper bias 【電學(xué)】正偏壓。 Zinc bias 【電學(xué)】負(fù)偏壓。 Cut on the bias 斜裁,斜切。 Be free from bias 絲毫不受偏見左右。 Be under a bias in favor of [against] 對(duì)…有偏愛[偏見]。 Have a bias to [towards] 對(duì)…有偏心。 Without bias and without favour 不偏不倚地,公公平平地。 adj. 斜的;【電學(xué)】偏動(dòng)的。 Bias bands 斜帶。 adv. 斜,偏。 Cut material bias 斜切料,斜開料,斜裁。 vt. (biased, biasing 〔英國(guó)〕 biassed, biassing) 1.使有偏見,使偏重,使偏向一方。 2.【電學(xué)】加偏壓于。 be bias(s)ed against 對(duì)…抱有偏見。 Bias … into 【電學(xué)】加偏壓使進(jìn)入…。 My ignorance biased me against my teacher. 我由于無知而對(duì)老師抱有偏見。 adj. -ed 有偏見的。
The accelerometer bias errors result in an average constant offset plus an oscillatory component . 加速度計(jì)的偏置誤差形成一平均的常值偏離加上一振蕩分量。
The system was simulated in four kinds of conditions . the effect of gyro drift and accelerometer bias on the evaluation error of misalignment angles and attitude error was analyzed 并且分四種情況對(duì)系統(tǒng)進(jìn)行了仿真,分析了加速計(jì)零偏和陀螺漂移對(duì)失準(zhǔn)角估計(jì)誤差和姿態(tài)誤差的影響。
A batch least - squares maximum likelihood estimator is employed to calibrate the model coefficients of accelerometer and a polynomial post - fit method is used to establish temperature models of these coefficients . the temperature models of accelerometer bias and scale factor of accelerometer are established between - 20oc and 50 oc . after compensating the temperature error by using these models , the post - fit residuals of the accelerometer output have been improved to 10 ? 5 g , and the trend term of accelerometer changing with temperature basically vanished 采用最小二乘極大似然估計(jì)和多項(xiàng)式擬合的方法,分析加速度計(jì)靜態(tài)模型系數(shù)隨加速度計(jì)殼體溫度變化的規(guī)律,建立了- 20oc 50oc之間加速度計(jì)零偏和標(biāo)度因數(shù)誤差的溫度模型,應(yīng)用該模型對(duì)加速度計(jì)溫度干擾進(jìn)行補(bǔ)償,補(bǔ)償后,加速度計(jì)輸出的擬合均方根誤差一到二個(gè)數(shù)量級(jí),并且基本上消除了加速度計(jì)輸出隨溫度變化的趨勢(shì)項(xiàng),使得加速度計(jì)測(cè)量精度得到了明顯提高。