邊坡穩(wěn)定分析小程序SLOPE相當(dāng)不錯的
上傳時間： 2015-08-27
上傳用戶：aa17807091
實(shí)現(xiàn)對InSAR復(fù)相位信號進(jìn)行基于局部頻率估計的“斜坡自適應(yīng)（SLOPE-adapt）濾波” 此濾波方法特別適用于InSAR相位圖濾波，能在最大限度保持有用信息的條件下濾除各種噪聲。
標(biāo)簽： InSAR SLOPE-adapt 濾波 相位信號
上傳時間： 2014-01-25
上傳用戶：mpquest
Differential Nonlinearity: Ideally, any two adjacent digitalcodes correspond to output analog voltages that are exactlyone LSB apart. Differential non-linearity is a measure of theworst case deviation from the ideal 1 LSB step. For example,a DAC with a 1.5 LSB output change for a 1 LSB digital codechange exhibits 1⁄2 LSB differential non-linearity. Differentialnon-linearity may be expressed in fractional bits or as a percentageof full scale. A differential non-linearity greater than1 LSB will lead to a non-monotonic transfer function in aDAC.Gain Error (Full Scale Error): The difference between theoutput voltage (or current) with full scale input code and theideal voltage (or current) that should exist with a full scale inputcode.Gain Temperature Coefficient (Full Scale TemperatureCoefficient): Change in gain error divided by change in temperature.Usually expressed in parts per million per degreeCelsius (ppm/°C).Integral Nonlinearity (Linearity Error): Worst case deviationfrom the line between the endpoints (zero and full scale).Can be expressed as a percentage of full scale or in fractionof an LSB.LSB (Lease-Significant Bit): In a binary coded system thisis the bit that carries the smallest value or weight. Its value isthe full scale voltage (or current) divided by 2n, where n is theresolution of the converter.Monotonicity: A monotonic function has a SLOPE whose signdoes not change. A monotonic DAC has an output thatchanges in the same direction (or remains constant) for eachincrease in the input code. the converse is true for decreasing codes.
標(biāo)簽： Converters Defini DAC
上傳時間： 2013-10-30
上傳用戶：stvnash
WDT ，F(xiàn)lash ，F(xiàn)LL+ ，Timer，Comp_A SLOPE ADC to Detect Tempclockworked
標(biāo)簽： WDT
上傳時間： 2014-12-20
上傳用戶：asasasas
MSP430超低功耗微處理器是TI公司推出的一種新型單片機(jī)。它具有16位精簡指令結(jié)構(gòu)，內(nèi)含12位快速ADC/SLOPE ADC,內(nèi)含60K字節(jié)FLASH ROM，2K字節(jié)RAM，片內(nèi)資源豐富，有ADC、PWM、若干TIME、串行口、WATCHDOG、比較器、模擬信號，有多種省電模式，功耗特別小，一顆電池可工作10年。開發(fā)簡單，仿真器價格低廉，不需昂貴的編程器。
上傳時間： 2014-12-22
上傳用戶：731140412
The AP2406 is a 1.5Mhz constant frequency, SLOPE compensated current mode PWM step-down converter. The device integrates a main switch and a synchronous rectifier for high efficiency without an external Schottky diode. It is ideal for powering portable equipment that runs from a single cell lithium-Ion (Li+) battery. The AP2406 can supply 600mA of load current from a 2.5V to 5.5V input voltage. The output voltage can be regulated as low as 0.6V. The AP2406 can also run at 100% duty cycle for low dropout operation, extending battery life in portable system. Idle mode operation at light loads provides very low output ripple voltage for noise sensitive applications. The AP2406 is offered in a low profile (1mm) 5-pin, thin SOT package, and is available in an adjustable version and fixed output voltage of 1.2V, 1.5V and 1.8V
上傳時間： 2017-02-23
上傳用戶：w124141
1、引言SFP光模塊的數(shù)字診斷監(jiān)測主要是對光模塊的供電電壓、模塊溫度、偏置電流、接收光功率、發(fā)射光功率等5個模擬參量和各種監(jiān)控信號實(shí)時監(jiān)測。通過分析數(shù)字化測量結(jié)果判斷光模塊的通信工作狀況，這有利于光通信鏈路的維護(hù)目前大部分設(shè)計方案是采用MAXIM公司的DS1859，該芯片完全兼容SFF-8472協(xié)議，功能齊全，軟件編程簡便，但是該芯片價格比較貴，同樣很多空間已固定，不靈活，擴(kuò)展性不好，對于以后版本的升級不方便。本方案采用一片MCU，EEPROM，數(shù)字控制電位器（DCP）替代DS1859，使用軟件編程達(dá)到滿足SFF-8472協(xié)議要求，用FLASH存儲A2H地址內(nèi)容以及內(nèi)外部校準(zhǔn)相結(jié)合的新校準(zhǔn)思想，具有性價比高，可靠性好，擴(kuò)展性好，校準(zhǔn)快速簡便等優(yōu)點(diǎn)本文首先介紹五個模擬量的一種新校準(zhǔn)原理，接若分析DDM系統(tǒng)的控制器MCU、限幅放大器、激光驅(qū)動器、存儲單元、DCP的原理與作用，然后給出軟件的設(shè)計思路和實(shí)現(xiàn)方案，最后通過實(shí)驗(yàn)數(shù)據(jù)驗(yàn)證該方案的可行性。2、參量校準(zhǔn)原理根據(jù)SFF-8472協(xié)議，光模塊的供電電壓等五個模擬參量有內(nèi)部校準(zhǔn)和外部校準(zhǔn)兩種方式，內(nèi)部校準(zhǔn)的參數(shù)固化在程序里面，雖然可以通過外部界面設(shè)置改變，但是不同型號激光器PD響應(yīng)度不一樣，內(nèi)部校準(zhǔn)就很不靈活。外部校準(zhǔn)，克服了內(nèi)部校準(zhǔn)的缺點(diǎn)，但是，由于要測量SLOPE和offet兩個參數(shù)，需人工手調(diào)，在批量生產(chǎn)的情況下，測量效率低下。而使用內(nèi)外部校準(zhǔn)相結(jié)合的校準(zhǔn)方式可以克服上述的缺點(diǎn)
上傳時間： 2022-06-26
上傳用戶：
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